Bluetooth 5.2 on this wireless headset delivers fast, stable, and no latency connection Built-in omnidirectional dual microphone blocks out disruptive background noise, optimizing your voice while producing smoothest transmission and most stable connectivity Support play/pause/switch/answer call/reject call Ear hook design, ideal for online conference, safer to answer calls while driving Bluetooth version: V5.2+EDR JL 6973 Speaker: 13MM 16 96dB2dB Audio format: MP3 Signal-to-noise ratio: 80db Battery capacity: 110mAh Music time: about 18:00 Talk time: about 16 hours Standby time: about 90 hours Charging time: about 1 hour Transmission range: more than 10 meters Voice prompts: Chinese and English Noise reduction: CVC 6.0 Supported protocols: A2DP/AVRCP/HFP/HSP/SPP/CVC/APTX