Sennheiser at Audio46

2 year warranty

Sennheiser MOMENTUM True Wireless 3 with Adaptive Noise Cancellation (Open Box)

• Guaranteed to work like new or we'll exchange within 30 days. We test our Open Boxes to ensure they are in perfect operating condition. Learn more about our Open Box policy>

Important Notice:
• All returns on this item have a 10% restocking fee

$212.00 Regular price $249.95 Save $37.95 (15% OFF)
before taxes, if applicable

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Product SKU: 700074 (OB)


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Product Details from the Brand

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Signature sound
Enjoy superior high-fidelity sound with impactful bass thanks to Sennheiser's TrueResponse technology.

Every detail
Listen to high resolution wireless audio like never before: aptX™ Adaptive codec makes you hear every detail.

Your sound
Have it your way: you can personalise the sound with a choice of presets and an equalizer feature to tailor the sound experience to your taste.


No distraction
Next-generation Adaptive Noise Cancellation automatically adjusts the level of noise cancelling when the noise level in your environment changes.

Total awareness
Stay in touch with your surroundings and bring back the world at a touch with the Transparency Mode.


Absolute clarity
Talk with a crystal-clear voice on the phone: three advanced noise cancelling microphones on each earbud ensure people only hear you and not your surroundings.

Voice control
Have it all under control, from phone calls to voice assistant access, with the high-quality voice pick-up.


Perfect fit
These compact and ergonomic earbuds come with ear adapters and optional silicon fins in a range of sizes to guarantee a great personal fit and exceptional wearing comfort.

Any weather
Get out, go places, exercise: your earbuds can keep pace with your life under any circumstance: with their IPX4 splash resistance you don’t even have to worry if it gets wet.

All day long
Keep on listening! You have 7 hours of battery life and 28 hours of overall play time, when using the case to charge on the go. Recharging the case is simple thanks to QI wireless charging support.


  • Sennheiser Signature Sound - Superior sound you can personalise to your taste. Our TrueResponse Transducer uses 7mm dynamic drivers for minimal distortion and the aptX™ Adaptive codec ensures the highest resolution wireless audio.

  • Adaptive Noise Cancellation - Skip your environment with Adaptive Noise Cancellation to adapt the noise levels for a truly immerse experience, while you can get back to reality at one simple touch with the Transparency Mode.

  • IPX4 (Splash Resistance) - Three advanced noise-cancelling microphones on each earbud ensure people only hear you and not your surroundings [add] when on the phone.

  • 28hrs Battery Life - Recharge the case with convenient Qi wireless charging.

  • active recording - Thanks to their IPX4 splash resistance these earbuds can keep pase with your life whether you're traveling, commuting, or exercising.

  • secure fit - The enhanced ergonomics guarantees exceptional all-day wearing comfort. You also have a choice of ear adapters and optional ear fins to ensure a fit that's tailored to you.

  • wireless charging - Enjoy 7 hours of battery life, with 28 hours overall when using the case to charge on the go. A quick 10-minute charge will provide 1hr music playtime.

Smart Control App

Fine-tune your listening experience by customizing your sound with the integrated equalizer, a variety of presets or even a guided listening test.

Sennheiser Smart Control is a free app and compatible with most iOS and Android systems. This app is available in 8 languages including German, English, French, Spanish, Russian, Korean, Japanese and Mandarin.

What's in the box?

  • Pair of earbuds
  • Ear adapter sets (XS/S/M/L)
  • Ear fin sets (S/M/L)
  • Charging case & USB-C cable
  • Quick guide & safety guide

Technical Data

  • Microphone


  • Supported Profiles


  • THD, total harmonic distortion

    <0.08% (1 kHz / 94 dB)

  • Ear coupling

    ear canal

  • Transducer principle


    TrueResponse™ dynamic, 7 mm diameter

  • Charging time

    approx. 1.5 hrs for full charge, after 10 min charging 1 hrs music playtime

  • Pick-up pattern

    3 mics per earbud, beamforming for noise reduction

  • Operating time

    7 hrs

  • Power supply

    5 V⎓, 1000 mA max, USB charging via USB-C socket at charging case; Qi Wireless charging

  • Battery Specification

    Built-in Lithium-Ion rechargeable batteries; left/right earbud: 77 mAh, charging case: 850-950 mAh

  • Bluetooth

    Bluetooth 5.2 compliant, class 1, 10 mW (max)

  • Codecs

    SBC, AAC, aptX™, aptX adaptive™

  • Frequency range

    5 Hz – 21 kHz

  • Sensitivity

    107 dB SPL (1 kHz / 1 mW)

  • Noise cancellation

    Hybrid Adaptive ANC

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