HA-S31BT-B Headset Wireless Head-band Calls/Music Micro-USB Bluetooth

Operating temperature (T-T): 5 - 40 °C Weight: 158 g LED indicators: Y Product type: Headset Product colour: Black Foldable: Y Wearing style: Head-band Recommended usage: Calls/Music Headset type: Binaural Volume control: Buttons Operating keys: Volume -, Volume +, Bluetooth pairing Package type: Hanging box Cables included: Micro-USB Bluetooth version: 4.1 USB connector: Micro-USB USB connectivity: Y Connectivity technology: Wireless Wireless range: 10 m Bluetooth: Y Frequency band: 2.402 - 2.48 GHz Bluetooth profiles: AVRCP, A2DP, HFP, HSP Battery type: Built-in battery Battery technology: Lithium Rechargeable battery: Y Number of batteries supported: 1 Battery operated: Y Number of products included: 1 pc(s) Buttons quantity: 3 2.5 mm connector: N Battery level indicator: Y Voice guidance: Y Microphone type: Built-in Impedance: 32 O Driver unit: 3.07 cm Driver type: Dynamic Ear coupling: Supraaural Magnet type: Ferrite Headphone frequency: 20 - 20000 Hz Audio formats supported: SBC