ACCENTUM True Wireless

Immerse in all-day audio with ACCENTUM True Wireless. The ultra-comfortable ergonomic design and enduring battery life provides pleasure for an extended listening experience. Guaranteed uninterrupted audio with up to 8 hours of playtime and 20 additional hours from the case. TrueResponse™ acoustic technology delivers Sennheiser’s signature sound, personalized through the Smart Control App’s 5-band EQ and Soundcheck. Hybrid ANC battles noise, and Transparency Mode tunes into surroundings instantly. With Bluetooth 5.3 and LE audio compatibility, customizable touch controls, and dual mics, ACCENTUM True Wireless is a very versatile sound companion for all-day listening.

Outstanding All-Day Comfort: Designed for extended listening comfort based on ergonomic in-ear research.

Superior Sound Quality: TrueResponse™ acoustic technology for Sennheiser’s signature sound, customizable through the Smart Control App for a personalized audio journey.

Effective Noise Cancellation: Hybrid Active Noise Cancellation ensures an immersive listening experience, blocking distractions in any environment.

Extended Battery Life: Up to 8 hours of playtime with an additional 20 hours from the charging case for uninterrupted all-day audio.

Versatile Charging Options: Convenient Qi wireless or USB-C charging options for the case to keep you powered up effortlessly.

Transparency Mode: Instantly tune into surroundings without removing earbuds for situational awareness.

Cutting-Edge Wireless Technology: Bluetooth 5.3 compatibility and Bluetooth LE Audio for advanced connectivity, including Auracast™ wireless audio.

Dual Mic Call Quality: Dual Mics on each earbud for versatile and high-quality call experiences, usable together or independently.

Yes, ACCENTUM True Wireless is equipped with the TrueResponse™ transducer. Developed by Sennheiser’s audio experts, the 7mm dynamic driver ensures outstanding sound.

There are also advanced options to customize the sound to your individual preferences. In addition to the internal audio EQ, you can select predefined audio presets such as Bass Boost or use the Sound Check function to help you find the perfect EQ preset.

To learn more about the German-made TrueResponse™ transducer, use the following link: 

https://www.sennheiser.com/newsroom/engineered-for-goosebumps.

ACCENTUM True Wireless has been created to deliver great sound experience in any situation whilst ensuring maximum comfort thanks to its ergonomic design. With enhanced features including Hybrid Active Noise Cancellation (ANC), adjustable Transparency Mode, and outstanding all-day battery life, ACCENTUM True Wireless is the perfect sound companion for on the go. Our anti-occlusion system minimizes discomfort when walking and speaking by compensating for air pressure fluctuations in the ear canal when ANC is used.

ACCENTUM True Wireless features the latest Hybrid Active Noise Cancellation (ANC) technology. Whether you are on the street, riding the train, or enjoying music in a busy café, ACCENTUM True Wireless’ effective ANC system takes on noisy environments so there is no need to pause your listening. The advanced system utilizes microphones on the outside and inside of the earbuds to detect ambient noise and block it out. Hybrid ANC does not have a negative impact on sound performance (i.e. the ANC system does not cause additional noise) and optimises comfort (i.e. the ANC system does not cause pressure on the ears).

When you need to tune into your surroundings, activate Transparency Mode to hear outside sounds in an instant without removing your earbuds. The level of transparency is adjustable in the Smart Control App.

ACCENTUM True Wireless is Bluetooth 5.3 compliant (class 1) and supports an industry-leading reliable and stable Bluetooth connection. In addition to standard Bluetooth connectivity, it supports the new Bluetooth LE audio protocol and Auracast™.

In addition, ACCENTUM True Wireless features Bluetooth connection management, which makes it easier to switch between different audio sources.

ACCENTUM True Wireless supports the following Bluetooth codecs: SBC, AAC, and aptX™ Standard. Advanced audio codecs (like AAC and aptX™) provide hi-fi audio allowing you to enjoy the rich uncompromised listening experience you expect. Thanks to its support for the new LE Audio standard ACCENTUM True Wireless also supports the new Bluetooth codec LC3.

Designed based on extensive ergonomic in-ear research, ACCENTUM True Wireless guarantees exceptional long-lasting comfort. The soft silicon ear tips fit securely in the ear canal providing extra comfort that feels great even in the longest listening marathons. The ergonomic shape also ensures excellent handling - from inserting and removing the earphones to operating the touch controls. For its unique design, ACCENTUM True Wireless has also received the Red Dot Design Award.

ACCENTUM True Wireless delivers up to 8 hours of playback time. Using the charging case, the earphones can be charged on-the-go for a total of 28 hours of playback time.

The earbuds charge automatically once placed into the charging case. The case itself can be charged either via an USB-C cable or by Qi wireless charging.

Using USB-C, the ACCENTUM True Wireless will be fully charged after approx. 1.5 hours. Furthermore, by just 10 minutes of charging you can get 1-hour of additional playback time. By Qi wireless charging the charging time may be extended compared to USB-C charging.

We recommend to only use QI certified charging pads.

However, thanks to the total playback time of 28 hours, recharging the ACCENTUM True Wireless is rarely necessary.

With the ACCENTUM True Wireless and the Smart Control App there are several intuitive ways to customize the sound. Once the set-up is done, all EQ parameters are stored inside the earbuds, making the personalized sound available with any music source.

Sound customization features of the ACCENTUM True Wireless:

Built in equalizer (EQ): certain audio frequency ranges can be boosted, lowered and left unchanged to individualize the sound

EQ Presets: select predefined audio presets like Bass Boost and Podcast mode

Sound Check: supports you to find the perfect EQ preset

Operation is brilliantly intuitive thanks to customizable touch controls that let the user define their preferred way of controlling audio, calls or activating the voice assistant like Google Assistant or Apple Siri.

Left and right earbuds may have different control assignments, and these can be changed easily by the Sennheiser Smart Control app.

Although customization is made easy, the default touch control assignments have been created to provide an intuitive option for users that want to control music, phones calls and voice assistance.

To make it even more convenient to use, the ACCENTUM True Wireless provides the possibility to use the left and right earbud individually. It can be used in different situations - for example when you need to stay aware to your surroundings while still listening to the important call or in case you need to charge one of the earbuds during a call. You can dynamically decide whether you want to use both earbuds or only one.

Users can activate a preferred voice assistant such as Google Assistant or Apple Siri by a convenient tap gesture on the earbud. The voice assistant selection depends on the specific smartphone configuration. Via the Sennheiser Smart Control app, the user can customize this control to use any touch gesture for voice assistant selection or, if preferred can disable voice assistant access.

ACCENTUM True Wireless earbuds have a splash resistant design for all weather conditions. They have been successfully tested to meet IP54* standards, which means they are splash resistant and can be used in the rain. However, they are not meant to be submerged under water, worn in the shower, or rinsed under running water. Wetted earbuds should be dried up with cloth before docking back to charging case.

The charging case itself is not tested for waterproofness.

* Rating according to International Protection Marking standard IEC 60529. The earbuds were tested under controlled laboratory conditions. The earbuds are splash resistant for non-water sports and exercise. Splash resistance might decrease because of normal use. Do not charge wet earbuds. The charging case is not splash resistant.

All Sennheiser product are intensively tested for product quality and reliability. Our quality tests include several mechanical, electrical, thermal, and chemical (e.g., dust and splash resistance), drop, tumbling, UV color stability, scratch and rub, chemical resistance, battery safety, ESD, RF/Bluetooth stability and interference and many more.

These tests allow us to validate the product for reliability and robustness for long lifetime even in tough conditions. Even if something happens to your product, you are covered by our 2-year warranty.

You can pair ACCENTUM True Wireless with up to six different Bluetooth devices. The earbuds stores and remembers these pairings.

Thanks to Multipoint connect feature the ACCENTUM True Wireless can be connected to two of these paired devices simultaneously, e.g. play music from one Bluetooth device and switch easily to another Bluetooth device without setting up a new Bluetooth connection.

Within the Sennheiser Smart Control app you can get an overview of the paired Bluetooth devices and manage your BT connections.

Yes, in general you can use the ACCENTUM True Wireless without the Sennheiser Smart Control app for music listening, phone calls and voice assistant access. We recommend using the Smart Control app, since it further enhances your experience by adding several additional personalization options such as adjusting the audio EQ, configuring Transparency mode or customizing the touch controls. The Smart Control app also enables you to receive the latest firmware updates.

To learn more about the Sennheiser Smart Control app, please use the following link: 

https://www.sennheiser-hearing.com/smartcontrol.

The Sennheiser Smart Control app is available in the Android Play Store and iOS App store.

In case you want to direct download the app, please use the following download link (for Android only): 

https://firmware.s-consumer-cloud.com/redirect/getSmartControl.html.

The batteries of the earbuds and charging case cannot be exchanged.

The ACCENTUM True Wireless utilizes embedded high-quality rechargeable Li-Ion batteries, intensively tested and qualified to meet the highest international quality standards. They are sealed inside the housing for high robustness and tested for IP54 splash and dust resistance. The earbuds build to last for long lifetime, and we offer replacement parts and a 2-year global warranty program.

The enhanced ergonomics of the ACCENTUM True Wireless guarantees exceptional all-day wearing comfort. Sennheiser’s most compact earbuds come with a choice of 4 sizes of ear adapters (XS, S, M, L) and optional silicon fins in 3 sizes (S, M, L) that help keep the earbuds securely in place.

It is recommended to use the correct ear adapter and ear fin size to form a perfect seal within the ear-canal for an optimal listening experience. By the Sennheiser Smart control app you can run an earbud fitting test, which checks the correct sealing of your device.

Further information e.g., a downloadable user manual, can be found on Sennheiser’s ACCENTUM True Wireless product page in the section “Downloads”.: https://www.sennheiser-hearing.com/accentum-true-wireless/

Auracast™ is a new way to share and stream audio and is based on the enhanced capabilities of the new Bluetooth LE Audio standard. You can access Auracast™ streams in public areas similar to using Wi-Fi and create a private Auracast™ channel to stream your own audio content. So, there can be open, free accessible streams or closed ones. There are many use cases on how Auracast™ will create a beneficial user experience. Here are some examples:

• Streaming Bluetooth audio from one notebook or smartphone to many receivers.
• Enhancing the audio in an auditorium by streaming the speaker’s voice to the audience.
• Tour guide information systems in museums.
• Public announcements at airport gates or station platform streams to your headphones.
• TV set unmuted in waiting halls or gyms.
• Enhancing the audio or offering an additional language channel in theaters or cinemas.
• At multistage festivals, you could easily check in real-time the music of each stage.

Please refer to the following web page for more information: https://www.bluetooth.com/Auracast/. Auracast™ will be available via a firmware update later in the year, so please make sure to always install the latest firmware update throughout the Sennheiser Smart Control app. Once this feature is unlocked, you will receive a notification by our Sennheiser Smart Control app.

Bluetooth LE Audio will be available via a firmware update later in the year, so please make sure to always install the latest firmware update throughout the Sennheiser Smart Control app. Once this feature is unlocked, you will receive a notification by our Sennheiser Smart Control app.

• Wake up the earbuds by placing them into the charging case and connecting the USB-C cable. We recommend to fully charge the ACCENTUM True Wireless before first time use.
• Select the correct ear adapter from a selection of four sizes (XS, S, M, L). Choose the ear adapter size that provides an exceptionally good seal to enjoy the best possible audio experience.
• Twist the earbuds slightly into your ear for perfect and secure fit.
• Pair the earbuds with your smartphone. The Bluetooth pairing mode is activated automatically once you first power-on the earbuds. Alternatively, you can manually activate pairing mode by pressing both touchpads for at least 3 seconds. In the Bluetooth menu of your smartphone, select “ACCENTUM TW”.
• A voice prompt will inform you once the pairing was completed successfully. Alternatively, the LED indicator at the earbuds will indicate a successful Bluetooth connection by blue.
• Download the Sennheiser Smart Control app from your app store to run the earbud fit test and to personalize your ACCENTUM True Wireless experience.
• For further information and support, consult the supplied quick guide or online user manual downloadable from Sennheiser webpage.

The ACCENTUM True Wireless is designed to deliver exceptional sound performance thanks to Sennheiser’s TrueResponse™ transducer and the internal audio EQ.

However, to enjoy the sound to the fullest, it is important to place the earbuds correctly in the ear canal and choose the ear tips that fit best. The ACCENTUM True Wireless comes with four sizes of ear tips (XS, S, M, L). The Quick Guide explains exactly how to insert the ear tips into your ears to achieve a perfect seal in the ear canal. It is possible that you will need a different ear tip size for each ear.

Using the Sennheiser Smart Control app, you can perform an earbud fit test that checks the correct seal of your device.

Please check the equalizer in the Smart Control app and make sure that you have selected the desired settings. Furthermore, we recommend activating ANC, since the sound profile is optimized for the ANC mode.

The specified battery time of 8 hours (total battery life of 28 hours including charging case) has been confirmed for music listening under the following conditions:

• ACCENTUM True Wireless earbuds are fully charged for at least 1.5 hours
• iPhone within 1-meter distance
• Bluetooth AAC codec
• Volume level set to mid-level
• Transparency Mode and Active Noise Cancellation feature turned off
• Customized EQ turned off

The playback time may differ under different operating conditions.

When using ANC or Transparency Mode outdoors in stormy weather conditions or when cycling, wind noise may have impact on the listening experience. As ACCENTUM True Wireless has been designed to be portable it utilizes small microphones which, due to their compact nature can’t also be optimized for certain strong wind situations. Under wind conditions, it is recommended to enable the “Anti-Wind” mode within the Sennheiser Smart Control app.

When using the Sennheiser Smart Control app, you will receive a notification once a new firmware release is available. The app will guide you through the update process. The firmware update will be installed over-the-air via the Bluetooth wireless connection. Additionally, you can always check for the current firmware release status in the Smart Control app’s settings.

The ACCENTUM True Wireless has integrated power-saving features. When the earbuds are disconnected from a Bluetooth source and not in use, they can be configured to switch off automatically.

The duration until earbuds gets switched off automatically can be customized by the Sennheiser Smart Control app, by default it is set to “never”.

To turn the earbuds on again, press one of the touch pads or place them into the charging case for a short time.

In the device settings menu of the Sennheiser Smart Control app you can select between two different audio resolution modes:

• Standard – High quality audio codecs are used like SBC, AAC, aptX™ or LC3
• Low Latency – Latency optimizations of Standard audio codecs, e.g. for mobile gaming

Please note that the "Standard" audio resolution mode offers the most robust wireless audio transmission.

Therefore, select "Standard" if you are in situations with strong interference, e.g. in public places.

The battery level indicator always shows the remaining battery life of the earbud side with less power.

Examples:

• If left earbud has 50% battery level and right earbud has 80% battery level, it indicates 50% battery level.
• If left earbud has 90% battery level and right earbud has 20% battery level, it indicates 20% battery level.
• If only right earbud is in use and left earbud remains in the charging case, it indicates the right earbud battery level.

The ACCENTUM True Wireless is certified for QI wireless charging as a convenient charging option. When charging wireless, please note the following:

• Only Charge with QI certified wireless charging pads.
• Place the ACCENTUM True Wireless charging case with the earbuds in the center of the Qi charging pad.
• Depending on the charging pad, the charging process may start with a delay of a few seconds of.
• The charging process slows down at higher ambient temperatures. Please refer to the manual for the specified temperature range for charging.
• The charging time is longer with wireless charging compared to USB-C charging.
• For safety reasons, you should generally not charge products unattended.

Auracast™ is a new way of sharing and streaming audio. With Auracast™, streams become accessible in public areas, similar to WiFi. There can be open, freely accessible streams or closed streams. Auracast™ is part of standard Bluetooth and therefore a proprietary solution. With more and more new LE Audio-based devices, the offering of Auracast™ will increase soon. Some manufacturers of smartphones and televisions have announced that current devices will receive Auracast™ capabilities through firmware upgrades. However, there is currently no official list of public locations where Auracast™ can already be tried out. As soon as this is available, we will keep you updated here.

First at all, attention: Liquids can damage the electronics of the product!

Liquids entering the housing of the product can cause a short-circuit and damage the electronics. So, keep all liquids far away from the product and do not use any solvents or cleansing agents!

Only clean the charging case with a soft, dry cloth. Clean the earbuds with a slightly damp cloth.

Regularly check the ear tips and nozzle area for suck-on dirt. If necessary, carry out the following cleaning steps:

• Remove the ear tips from the earbuds’ in-ear sound tunnels.
• Using a dry, clean brush (e.g. toothbrush), lightly brush over the in-ear sound tunnel openings to remove any dirt above the protective fabric. Avoid damaging the protective fabric within the in-ear sound tunnels to prevent dirt or debris from entering the electronic.
• You can clean the silicone ear tips under lukewarm running water. Let the ear tips dry at room temperature for at least 12 hours before re-attaching them to the earbuds.
• Clean the charging contacts on the earbuds and in the charging case from time to time, e.g. with a cotton swab.

To remove any dirt such as dust accumulation or lint from the USB socket of the charging case:

• Blow into the USB socket or carefully brush a fine object (e.g. a toothpick or the bristles of a toothbrush) through the opening of the socket.

If the functions of the earbuds are disturbed, you will need to perform a software reset. A software reset will be done each time you insert the earbuds into the charging case and wait for at least 10 seconds.

If the functions of the earbuds are faulty and a soft reset does not solve the problem, reset the earbuds to the factory settings. Among other things, this will delete all pairing settings.

You can reset the earbuds to the factory settings using the Smart Control app in the settings menu.

Using the Smart Control app is the easiest way to perform a factory reset.

Alternatively, you can reset the earbuds to the factory default settings by the following steps (well, we made it extra difficult to avoid any unintended factory resets):

• Disconnect your ACCENTUM True Wireless from any Bluetooth connection by deactivating Bluetooth on your audio sources (smartphone etc.). If you are connected to an Auracast™ transmitter, disconnect it via the Smart Control app.
• Only take one earbud out of the charging case.
• Keep the other earbud inside the charging case and close the charging case lid.
• Press and hold the touch control on the earbud outside the charging case for at least 15 seconds. As soon as the earbud LED starts alternating green/red, release the touch control.
• After releasing the touch control, the earbud LED continues to alternate green/red.
• Take the second earbud out of the charging case.
• Now press and hold the touch control on the second earbud for at least 15 seconds.
• As soon as the earbud LED starts alternating green/red, release the touch control.
• The earbuds are now reset to the factory settings and synchronized with each other, which takes a few seconds.
• Successful resetting to the factory settings and synchronization of the earphones is indicated by the LED, which lights up alternately blue and red.
• When resetting to factory settings, all Bluetooth pairing settings will be deleted and your ACCENTUM True Wireless will have to be paired with your smartphone again.

First of all, you should restart your smartphone and check for the latest software updates for your phone.

If you can’t hear any audio, check the following:

• Make sure that the earbuds are charged and connected to your Bluetooth device.
• Check in the Bluetooth settings of your connected device that media and call connection is activated.
• Make sure the earbuds are inserted into your ears correctly.
• Increase the volume on your Bluetooth device and on the earbuds by pressing the touchpad on the right earbud until you hear the voice prompt "Volume max".
• Make sure that the earbuds are not unintentionally actively connected to another device via Bluetooth Multipoint. Try switching off any other Bluetooth audio sources you may be connected to.

If the sound still does not work after the above steps, restart the earbuds (see "How can I reset the earbuds?").

If Bluetooth pairing does not work, proceed in the following order:

• First, you should restart your smartphone and check for the latest software updates for your phone.
• Charge the ACCENTUM True Wireless for at least 1.5 hours to ensure they are fully charged. The charging LED pulsates yellow to indicate charging and permanent green to indicate they are fully charged.
• Take the earbuds out of the charging case.
• Simultaneously touch and hold the right and left touch control for 3 seconds to start pairing mode.
• The LED of the right earbud flash red and blue.
• Start the search for Bluetooth devices on your smartphone and select “ACCENTUM TW”.

If necessary, enter the default pin code “0000” on your smartphone. If the Bluetooth pairing still does not work after the above steps, restart the earbuds (see "How can I reset the earbuds?").

Make sure that the charging contacts of the earbuds and the charging case are clean. If charging is still not possible, perform a reset and a factory reset of the earbuds.

The charging duration may be extended when using Qi wireless charging instead of USB-C charging.

For some Android smartphones there is a separate volume control for the Bluetooth headset and for the Android smartphone. Ensure that both volume controls are set to max. To increase volume, tap and hold the touchpad of the right earbud until you hear the voice prompt “Volume max”. Now increase the smartphone’s volume to maximum volume.

For smartphones that feature “absolute volume control” such as the Apple iPhone, there is only one volume control available, so you can either use the smartphone’s or ACCENTUM True Wireless volume control.

In addition, you might not be able to hear the full volume of the ACCENTUM True Wireless as the earphones may not sit properly in your ear. Please use the appropriate size of ear adapters so they fit snugly in your ear canal and completely seal your ears. For best results, follow the guidance in the quick guide on how best to place the earbuds into your ears.

With the Sennheiser Smart control app, you can perform an earbud fitting test to check the correct seal of your device.

If your conversation partner has difficulty understanding you during the call because a lot of ambient noise is being picked up, your Windows PC settings may be incorrect and you are using the internal microphones of the PC or notebook instead of the ACCENTUM True Wireless microphones.

Make sure that the Bluetooth audio profile of your Windows system is set to "ACCENTUM TW Hands-Free" before you make a call. The audio profiles can be checked and changed in the Windows notification bar (bottom right corner, loudspeaker symbol).

When using Microsoft Teams, also ensure that device settings for speakers and microphones are set to ACCENTUM True Wireless.

In case the audio quality is poor and sounds “mono”, it is likely that your Windows PC settings are incorrect and you are in hands-free protocol for phone calls instead of Bluetooth stereo mode.

When listening to music or other high-quality audio content, make sure that the Bluetooth audio profile of your Windows system is set to "ACCENTUM TW Stereo". The audio profiles can be checked and changed in the Windows notification bar (lower right corner, loudspeaker symbol). You can also check whether the correct audio codec is being used in the Sennheiser Smart Control app under "Settings". In the case of phone call mode, "No audio streaming" is displayed.

When using Microsoft Teams, make sure that the device settings for speakers and microphones are set to ACCENTUM True Wireless.

The ACCENTUM True Wireless blocks out ambient noise thanks to its Hybrid ANC (Active Noise Cancellation) function, which works in combination with its excellent passive noise attenuation and perfect fit in the ear canal.

The advanced system utilizes microphones on the outside and inside of the earbuds to detect ambient noise and block it out. Hybrid ANC does not have a negative impact on sound performance (i.e. the ANC system does not cause additional noise) and optimises comfort (i.e. the ANC system does not cause pressure on the ears). In case you experience only limited ANC performance, consider that in general ANC technology can only reduce ambient noise in low frequency range <1 kHz, e.g. engine sounds.

The excellent passive noise insulation of ACCENTUM True Wireless also significantly reduces ambient noise in higher frequency ranges. To achieve the best possible noise isolation and ANC performance, it is important to choose the ear adapter that best fits your ears. With the Sennheiser Smart Control app, you can perform an earbud fitting test to check the correct seal of your device. Also make sure that you have not activated the anti-wind mode in the Smart Control app to achieve maximum ANC performance.

In case you experience any issues during the OTA firmware update of your ACCENTUM True Wireless, please follow the following steps:

• Place both earbuds in the charging case for at least 10 seconds
• Take the earbuds out of the charging case and reconnect them to the Sennheiser Smart Control app
• Repeat the OTA FW update or follow the instructions in the app

If you have connected a Windows PC in parallel to a second audio device (e.g. a mobile phone) and you cannot play or hear any sound from the second audio device, make sure that the audio stream on the Windows PC has been completely stopped. Some Windows systems keep the audio connection active even if you have stopped the audio connection and prevent ACCENTUM True Wireless from switching to other multipoint audio sources. This happens when the Windows system continues to use the Bluetooth hands-free protocol after a phone call, as calls take priority over listening to music. In this case, manually change the audio profile from “ACCENTUM TW Hands-Free” to “ACCENTUM TW Stereo” in the Windows notification bar (lower right corner, loudspeaker symbol).

It’s always best to test the supplied ear tips to find the size that fits you best and delivers the best sound quality. The ACCENTUM True Wireless packaging includes four different ear tip sizes (XS, S, M, L). Also try twisting the earbuds into your ear as described in the quick guide until you find a comfortable position. Please note that you may need a different size of ear adapter for each ear.

You can try switching the Bluetooth function on your smartphone off and on again to reset the Bluetooth module or restart the smartphone.

You can try to perform a factory reset of the ACCENTUM True Wireless. After the factory reset, disconnect the ACCENTUM True Wireless, i.e. remove the "ACCENTUM TW" entries in the Bluetooth settings of your smartphone and pair the ACCENTUM True Wireless again.

If you notice that your voice cannot be heard well by the other party during a phone call, you should check the following points:

• During phone calls, make sure that the earbuds are correctly inserted into the ear-canal and then turm them slightly.
• Ideally, turn the earbud so that the correct beamforming angle for voice pickup is ensured (i.e. the outer microphone openings are in line with the mouth).
• Please also check that the microphone openings are not blocked by the ear itself.

Wind can also affect the quality of the phone call.

If you deactivate touch control, all touch controls and touch sounds are disabled. This applies with one exception: You can start pairing mode at any time by pressing both touchpads simultaneously for more than three seconds when the earbuds are out of your ear. In this case, make sure that you do not cover the in-ear sensors with your fingers.

For a seamless paring process, we have implemented Microsoft Swift Pairing. When manually establishing a new Bluetooth connection with a Windows 11 system, ensure that you have activated the “advanced” settings in the Bluetooth menu of your Windows system. Please always ensure that you have installed the latest version of your Windows system.

The ACCENTUM True Wireless complies to the Bluetooth standard version 5.3. When using third party communication apps like Microsoft Teams, WhatsApp, WeChat, or others, these apps may not fully comply with the Bluetooth standard, depending on the release version. Thus, we cannot guarantee full control functionality through earbud touch gestures during a call. However, we can guarantee excellent call quality through our voice pickup system.

Some users experience the problem that their Pixel phones do not automatically reconnect to their ACCENTUM True Wireless. In this case, you will need to reconnect manually via your phone's Bluetooth menu. Please update your ACCENTUM True Wireless to firmware 5.7.3 or higher via the Smart Control App to resolve this issue.

If you notice a difference in sound quality or volume between the left and right earbuds, this may be caused by clogged ear tips and earbud nozzle. In this case, remove the ear tips from the earbuds to clean them and follow the recommended cleaning instruction as described in the section “How shall I clean and maintain my earbuds?”.

The following spare parts and accessories for the ACCENTUM True Wireless are available:

For the black variant of ACCENTUM True Wireless (ATW1 Black):

• Earbud Set Black (ATW1 EARBUDS Black): Order No. 700265
• Charging Case Black (ATW1 CASE Black): Order No. 700268
• Ear Adapter Black XS, 5 Pair: Order No. 509283
• Ear Adapter Black S, 5 Pair: Order No. 509284
• Ear Adapter Black M, 5 Pair: Order No. 509285
• Ear Adapter Black L, 5 Pair: Order No. 509286

For the white color variant of ACCENTUM True Wireless (ATW1 White):

• Earbud Set White (ATW1 EARBUDS White): Order No. 700266
• Charging Case White (ATW1 CASE White) : Order No. 700269
• Ear Adapter White XS, 5 Pair: Order No. 509287
• Ear Adapter White S, 5 Pair: Order No. 509288
• Ear Adapter White M, 5 Pair: Order No. 509289
• Ear Adapter White L, 5 Pair: Order No. 509290

For purchasing or getting further information on accessories and spare parts please visit Sennheiser’s service webpage. Please understand our Shop offer may vary for some countries. https://spares.sennheiser-hearing.com/

Yes, these parts are compatible.

Contact information of your Sennheiser service can be found here:
⁠https://www.sennheiser-hearing.com/contact/ 

Should you unfortunately experience problems with your device we recommend checking for troubleshooting in our Helpcenter first or, if necessary, claim a warranty (Support > Repairs): 
⁠https://spares.sennheiser-hearing.com/ 

In case of a warranty claim, always ensure to include all original order references in your message details. Your request will be routed to your country specific support team.

To follow up on existing cases, including warranty claims, always use our latest mail to respond. Ensure your response includes your requests case reference number in the mail subject line. This ensures that your response is properly registered in our systems (marked in the mails subject line, starting with a “C”).