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Sennheiser Momentum True Wireless Manual

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MOMENTUM True Wireless
True wireless stereo earphones
M3IETW (M3IETW L, M3IETW R, M3IETW C)
Instruction manual
Use the search function, the navigation (left) or the following links:
Start
“Product overview
“Getting started”
“Using the earphones”
“FAQ/If a problem occurs ...
“Specifications”
Sennheiser electronic GmbH & Co. KG
Am Labor 1
30900 Wedemark
Germany
www.sennheiser.com
Version: 08/18 A01

Advantages and Disadvantages

Advantages

  • High-quality sound with support for aptX, aptX LL and AAC for improved audio fidelity.
  • Smart Control app enables EQ customization, firmware updates and voice prompt settings.
  • Compact charging case with USB-C provides about 12 additional hours of playback.
  • IPX4 splash-proof earbuds and multiple ear adapter sizes for comfortable daily wear.
  • Clear voice prompts and LED indicators simplify pairing, charging and status monitoring.
VS

Disadvantages

  • Left earbud cannot be used independently; it requires the right (master) earbud.
  • Earbud battery life around 4 hours may be short for long travel without the case.
  • Magnetic fields require a 10 cm distance from cardiac implants for safety.
  • Some features (Transparent Hearing, EQ, firmware) require the Smart Control app.
  • Not fully waterproof (IPX4), so avoid heavy rain or submersion.

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Frequently Asked Questions

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Each earbud provides about 4 hours of playback; the charging case adds approximately 12 hours. A complete charging cycle for earbuds and case takes about 1.5 hours. Use the supplied USB-C cable and a compatible USB power source for best results.

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A

Yes, the right earbud (master) can be used alone for calls and audio. The left earbud (slave) cannot be used independently because it relies on the right earbud for Bluetooth transmission.

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A

Take both earbuds from the case, touch and hold both touch panels for 5 seconds until you hear 'Pairing' and LEDs flash red-blue. Enable Bluetooth on your phone, select 'MOMENTUM TW' from the device list and enter PIN 0000 if requested.

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Transparent Hearing lets you hear ambient sounds without removing earbuds. Tap the right touch panel twice to activate the mode set in the Smart Control app; tap once to deactivate. The app offers options to mix music with ambient sound or mute music and only pass through ambient audio.

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Install the free Sennheiser Smart Control app on your smartphone, pair the earphones, and the app will show firmware updates and EQ/sound effect controls. Firmware updates require an Internet connection and transfer limited device data for the update process.

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Ensure both earbuds are charged, properly inserted and paired. Restart the earphones by placing them in the charging case, connect the case to power, then touch and hold both touch panels for 6 seconds. If problems persist, perform a factory reset via the app or the 30-second touch procedure.

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Earbuds are splash-proof with an IPX4 rating—suitable for sweat and light rain but not submersion. They generate magnetic fields; maintain at least 10 cm distance from cardiac pacemakers, implanted defibrillators or other implants to avoid interference.

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Product Description

Product pic

Sennheiser Momentum True Wireless — Premium Sound, Smart Control

The Sennheiser Momentum True Wireless combines refined audio engineering, reliable Bluetooth connectivity, and thoughtful ergonomics to deliver a premium true wireless experience. Designed for music lovers and commuters alike, these compact earbuds offer clear, detailed sound with deep bass response thanks to 7 mm dynamic transducers and support for high-quality codecs such as aptX, aptX LL and AAC. With an IPX4 splash-proof rating, they endure light sweat and rain while remaining comfortable for extended wear thanks to multiple silicone ear adapter sizes (XS, S, M, L).

Battery life is split between the earbuds and a portable charging case: about 4 hours of playback per charge from the earbuds and roughly 12 additional hours available from the 600 mAh charging case. Charging from empty takes about 1.5 hours, and the case uses a USB-C input for modern convenience. LED indicators on both the case and earbuds give clear feedback on charging and connection states, while voice prompts assist with status updates like pairing, low battery and connection changes.

The right earbud acts as the master for Bluetooth transmission and can be used solo; the left earbud relies on the right for connectivity. Touch controls on each bud handle play/pause, track skipping, volume adjustments, Transparent Hearing activation and call management. Transparent Hearing can be tailored through the Sennheiser Smart Control app to either mix ambient sound with playback or mute music for ambient listening. The app also enables an equalizer, firmware updates, voice prompt settings and battery status monitoring.

Safety and care are emphasized: follow volume safety guidance to avoid hearing damage, maintain a minimum distance from medical implants due to magnetic fields, and keep the product dry and within recommended temperature ranges. Built-in lithium batteries require correct charging practices; Sennheiser recommends using approved chargers and periodic recharging during extended storage. The product supports Bluetooth 5.0 and can store pairings for up to eight devices.

Together, precise sound tuning, app-driven customization, robust battery management and dependable Bluetooth performance position the Momentum True Wireless as a compelling choice for users seeking high-fidelity wireless earbuds with practical daily features.

Notes

  • Use the Smart Control app to access EQ presets, firmware updates and to change voice prompt options.
  • The left earbud cannot operate alone; the right earbud is required for Bluetooth connection.
  • Follow battery and disposal guidelines for safe operation and recycling.

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