The new HD 350BT are the ideal choice for people that love great audio. Enjoy an engaging sound experience with deep dynamic bass. Quality is guaranteed by the latest wireless technology including Bluetooth 5.0 and AAC, AptX™ codec support, with AptX™ Low Latency for perfect audio synchronization with videos. The Sennheiser Smart Control App makes it easy to customize the sound via the equalizer or engage podcast mode for improved intelligibility of speech content. The HD 350BT also feature an impressive 30-hour battery life that can be rapidly recharged via USB-C. It features a Voice Assistant button for instant Siri and Google Assistant interaction, intuitive physical controls for every day ease of use and a robust folding design for take-anywhere durability. Frequency response (Microphone) 80 Hz to 6,000 Hz (-3 dB) THD, total harmonic distortion < 0.3 % (1 kHz, 100 dB) Transducer principle Dynamic, closed Pick-up pattern Dual Beamforming Transducer principle (Microphone) MEMS Bluetooth Version 5.0 Frequency response 18 Hz to 22,000 Hz (-10 dB) Modulation scheme GFSK, π/4 DQPSK, 8DPSK Battery Specification Built-in Lithium-Polymer rechargeable battery: 3.7 V ⎓, 300mAh Charging Current 320 mA max. App support EQ and updates via Sennheiser Smart Control Audio codec SBC, AAC, AptX™, AptX™ Low Latency Supported Profiles HSP, HFP, AVRCP, A2DP Charging time Approx. 2 hours Charging voltage 5 V, DC Ear coupling Around Ear Operating time 30 hours music playback via Bluetooth Sound pressure level (SPL) 108 dB (1 kHz/0 dBFS) Transmission frequency 2,402 MHz to 2,480 MHz Weight Approx. 238 g
