HD 350BT Phased Out

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