Sennheiser Momentum 4 Wireless Black

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Sennheiser Momentum 4 Wireless Black, Mic, Battery time up 17 hrs Article number (SKU) - 509266 (black), 509267 (white) Wearing style - Headband stereo headphones Ear Coupling - Around-the-ear, circum-aural Connectivity - Bluetooth 5.2 compliant, class 1, 10 mW (max) Transmission frequency - 2,402 MHz to 2,480 MHz; GFSK, π/4 DQPSK / 8 DPSK Supported Profiles - A2DP, AVRCP, HFP Codecs - SBC, AAC, aptX™, aptX adaptive™ Speaker Type - Dynamic Transducer principle - 42mm diameter Speaker frequency range - 6 Hz to 22 kHz Speaker sensitivity - 106 dB SPL (1 kHz / 0 dB FS) Total harmonic distortion (THD) - Speaker: <0,3% (1 kHz / 100 dBSPL) Impedance - Speaker: Active 470 ohms / Passive 60 ohms Active Noise Cancellation - Hybrid Adaptive ANC Microphone principle - MEMS Frequency response (microphone) - 50 Hz to 10 kHz Microphone pick-up pattern - 2 mics per side, beamforming for noise reduction Battery time - Up to 60 hrs music playtime via Bluetooth and with ANC (test condition: iPhone, mid volume level) Charging time - Approx. 2 hrs for full charge; 5 min charging for up to 4 hrs playtime; Remark: Ambient temperatures >30°C may lead to extended charging times Battery type - Built-in Lithium-Ion rechargeable batteries 700 mAh Power Supply - 5 V⎓, 800 mA max, USB charging via USB-C socket