VIDVIE Wireless Stereo Headphone BBH2103 / Bluetooth / Headset

Additional information Driver unit 40mm Impedance 32 Bluetooth Version V4.1 (CSR) Bluetooth protocols HFP, A2DP, AVRCP Microphone sensitivity -42db Headset Sensitivity 97dB3dB Driver unit frequency 20Hz-20KHz Frequency response 20Hz-20KHz Radio frequency coverage 2.402GHz-2.480GHz Transmit ranget about 10 meters (barrier free) Status indication LED light Battery Rechargeable Lithium-ion battery; 3.7V, 300mAh Charger time 2.5 hours Play time 8 hours Standby time 200 hours Charge Micro-USB