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|
|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|
I didn't notice any signs of use on the headphones; even the packaging looked new. The battery also does what it promises. I see no reason not to buy refurbished products here in the store.
Well prized headset
Looks like new
I got these for the gym and ended up using them to replace my daily AirPods.
Sound is excellent for price paid, only gripe really is that the ear pads are just too small, hence the 4 stars.
HD 350BT Refurbished