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  • Sennheiser Signature Sound
  • Adaptive Noise Cancellation (ANC)
  • Future-proof Technologies
  • All Day Comfort
  • Sound Personalization
  • Lossless Audio
Sennheiser MOMENTUM True Wireless 4 Specifications
Wearing Style/td> True Wireless Stereo Earbuds
Ear Coupling Ear-canal
Frequency Response Dynamic
Transducer Size 0.00014% (-117dB)
Sound Pressure Level (SPL) 107 dB (1 kHz/1 mW)
THD (1 kHz, 94 dB SPL) < 0.08% (1 kHz/94 dB)
Noise Cancellation Hybrid Adaptive ANC technology
Microphone Principle MEMS
Microphone Frequency Response 100 Hz to 10 kHz
Microphone Pick-up Pattern (speech and ANC) 3 microphones per earbud beamforming array for active noise cancellation
Power Supply built-in lithium rechargeable batteries:
earbuds (R and L): 3.66 V, 75 mAh, 0.28 Wh or 3.8 V, 72 mAh, 0.274 Wh
charging case: 3.6 V, 820 mAh, 2.952 Wh
input: earbuds (R and L): 5 V, max. 100 mA charging case: 5 V, max. 1000 mA
output: earbuds (R and L): none
charging case: 5 V, max. 100 mA x 2 (R and L)<0.5W
Charging method via charging case USB charging via USB-C socket: 5 V, 1000 mA max;
Qi wireless charging
Operating time 7.5 hrs with rechargeable battery of the earbud (ANC activated) 7 hrs with rechargeable battery of the earbud (ANC deactivated) 30 hrs with rechargeable battery of the charging case (test conditions: iPhone, volume at 50%)
Charging Time of Rechargeable Batteries approx. 1.5 hours for full charge approx. 8 minutes for 1 hour of music playback (ambient temperatures < 15 °C or > 30 °C and Qi wireless charging increase the charging time)
Temperature Range Operation: 0 to +40 °C
Charging: +5 to +35 °C
Storage: -20 to +60 °C
Relative Humidity operation: 25 to 75%, non condensing
storage: 10 to 90%
Magnetic Field Strength earbuds: 0.95 mT charging case: 105 mT
Ingress Protection of the Earbuds Splash Proof (IP54)
Weight Earbuds: approx. 6 g each
Charging Case: approx. 66 g
Both Earbuds and Charging Case: approx. 78 g
Version Bluetooth 5.4 certified, class 1
Transmission Frequency Classic BDR/EDR and BLE 1M: 2,402 MHz to 2,480 MHz
BLE 2M: 2,404 MHz to 2,478 MHz (without 2,426 MHz)
Modulation GFSK, π/4 DQPSK, 8DPSK
Output Power 10 mW (max)
Codec aptX™, aptX™ Adaptive/Lossless, AAC, SBC, Auracast™ Broadcast Audio, LC3
Device name MOMENTUM TW 4
Number of Active Connections 2
  • (1) one pair of MOMENTUM True Wireless earbuds,
  • (2) four ear adapter sets (XS/S/M/L),
  • (3) three ear fin sets (S/M/L),
  • (4) one charging case,
  • (5) one USB-C charging cable and
  • (6) one quick guide & safety guide to get you started in no time.

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