Sennheiser Momentum 4 Wireless On Ear Headphones

Article number (SKU) 509266 (black), 509267 (white) Wearing styleHeadband stereo headphonesEar CouplingAround-the-ear, circum-auralConnectivityBluetooth 5.2 compliant, class 1, 10 mW (max) Transmission frequency2, 402 MHz to 2, 480 MHz; GFSK, /4 DQPSK / 8 DPSKSupported ProfilesA2DP, AVRCP, HFPCodecsSBC, AAC, aptX, aptX adaptiveSpeaker TypeDynamicSpeaker Type42mm diameterSpeaker frequency range6 Hz to 22 kHzSpeaker sensitivity106 dB SPL (1 kHz / 0 dB FS)Total harmonic distortion (THD)
Speaker: <0,3% (1 kHz / 100 dBSPL)ImpedanceSpeaker: Active 470 ohms / Passive 60 ohmsActive Noise CancellationHybrid Adaptive ANCMicrophone principleMEMSFrequency response (microphone)50 Hz to 10 kHzMicrophone pick-up pattern2 mics per side, beamforming for noise reductionBattery timeUp to 60 hrs music playtime via Bluetooth and with ANC (test condition: iPhone, mid volume level)Charging timeApprox. 2 hrs for full charge; 5 min charging for up to 4 hrs playtime; Remark: Ambient temperatures > 30°C may lead to extended charging timesBattery typeBuilt-in Lithium-Ion rechargeable batteries 700 mAhPower Supply5 V, 800 mA max, USB charging via USB-C socket