We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
White canal earbuds in a matching charging case

Sennheiser

Sennheiser MOMENTUM True Wireless 3 White Canal Earphones

SKU CH-8503-6GX3G

True wireless canal earphones with hybrid adaptive ANC, 7 mm dynamic drivers and 28 hours total battery life

  • TypeIn-Ear
  • ColorWhite
  • Driver Unit7 mm, TrueResponse, dynamic, closed-back
  • Frequency Response5Hz-21KHz
  • THD<0.08% (1 kHz / 94 dB SPL)
  • Sensitivity107 dB SPL (1 kHz / 1 mW)
  • TrueResponse dynamic driver delivers high-fidelity sound from 5 Hz to 21 kHz
  • Hybrid adaptive ANC automatically adjusts to your environment for distraction-free listening
  • Three microphones per earbud ensure clear calls and voice-assistant interaction
  • Transparency mode restores ambient sound instantly with a touch
  • 7 hours earbud playtime extends to 28 hours with the charging case

TrueResponse 7 mm driver earbuds

The Sennheiser MOMENTUM True Wireless 3 earphones use a 7 mm dynamic TrueResponse transducer in a closed-back canal design. They deliver a frequency response of 5Hz-21KHz with total harmonic distortion below .08% at 1 kHz and 94 dB SPL. Sensitivity is rated at 107 dB SPL at 1 kHz per mW. The white finish distinguishes this variant.

Hybrid Adaptive ANC with 28-hour case

Hybrid Adaptive ANC automatically adjusts attenuation to the surrounding noise level for sustained immersion. Built-in lithium-ion cells provide 7 hours of playback from the earbuds and a total of 28 hours when combined with the charging case. Three microphones per earbud support clear voice pickup with a 100Hz-10KHz response. Transparency mode restores ambient sound on demand.

aptX Adaptive codec and Bluetooth source required

Verify that your playback device supports Bluetooth and the aptX Adaptive codec to access the full resolution pipeline. The canal fit relies on a secure seal for both bass response and noise-cancelling performance. Buyers who need on-ear comfort or longer single-charge endurance should consider alternative form factors. Part number 509181 confirms the exact model.

Highlights

  • TrueResponse dynamic driver delivers high-fidelity sound from 5 Hz to 21 kHz
  • Hybrid adaptive ANC automatically adjusts to your environment for distraction-free listening
  • Three microphones per earbud ensure clear calls and voice-assistant interaction
  • Transparency mode restores ambient sound instantly with a touch
  • 7 hours earbud playtime extends to 28 hours with the charging case

Specifications

BrandSennheiser
ModelMOMENTUM True Wireless 3
Part Number509181
TypeIn-Ear
ColorWhite
Driver Unit7 mm, TrueResponse, dynamic, closed-back
Frequency Response5Hz-21KHz
THD<0.08% (1 kHz / 94 dB SPL)
Sensitivity107 dB SPL (1 kHz / 1 mW)
Ear CouplingCanal
WeightWeight (earbuds): 0.20 oz.
Weight (charging case): 2.34 oz.
Noise CancellingHybrid Adaptive ANC
Wireless TypeBluetooth
BatteryBuilt-in Lithium-Ion rechargeable batteries
Operating TimeOperating time (earbuds): 7 hrs
Operating time (charging case): 28 hrs
Microphone Frequency Response100Hz-10KHz
FeaturesInspired by great sound
Discover unrivaled high-fidelity sound with our TrueResponse technology.
Interrupted by nothing
Experience Adaptive Noise Cancellation that automatically adjusts to your environment.
Assisted by voice pick-up
Three advanced microphones on each earbud ensure absolute clarity.
Supported by ultimate comfort
Experience a tailor-made fit with a variety of earbud adapters and silicone fins.
Sennheiser Signature Sound
Adaptive Noise Cancellation
High Quality Voice Pick-up
IPX4 splash resistance
Ultimate Fit
Up to 28 hours playtime
Wireless Charging
Wearing style: tru

Questions about this item

How long can I listen with the Hybrid Adaptive ANC active before the earbuds need a recharge?

The earbuds provide 7 hours of operating time, and the charging case extends total use to 28 hours.

What does the aptX Adaptive codec require on the source device to deliver high-resolution wireless audio?

The source must support aptX Adaptive; the earbuds handle the rest with their TrueResponse drivers.

Can the three microphones on each earbud pick up my voice clearly when paired with an older smartphone?

Yes, the 100 Hz – 10 kHz microphone response works with any Bluetooth audio device for calls and voice assistants.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.