Enjoy great wireless audio on the go or at home with the HD 350BT. Featuring Bluetooth 5.0, high-quality codec support (AAC, aptX low latency) and an excellent 30-hour battery life, this stylish and durable wireless headphone is your versatile companion for enjoying better audio wherever you are.

Frequency Response (Microphone): 80Hz - 6kHz (-3dB)
THD, Total Harmonic Distortion: <0.3% (1kHz, 100dB)
Transducer principle: Dynamic, closed
Shooting Pattern: Dual Beamforming
Transducer principle (microphone): MEMS
Bluetooth Version: 5.0
Frequency Response: 18Hz - 22kHz (-10dB)
Modulation Scheme: GFSK, π/4 DQPSK, 8DPSK
Battery specifications: Built-in 3.7V, 300mAh Li-polymer rechargeable
Charging current: 320mA max
App Support: EQ and updates via Sennheiser Smart Control
Audio Codecs: SBC, AAC, AptX , AptX Low Latency
Supported profiles: HSP, HFP, AVRCP, A2DP
Charging time: about 2 hours
Charging voltage: 5V, DC
Coupling to the ear: Circumaural
Operating time: 30 hours of music playback via Bluetooth
Sound Pressure Level (SPL): 108dB (1kHz / 0dBFS)
Transmission frequency: 2402MHz - 2480MHz
Weight: 238g