Bluetooth version: Bluetooth V5.3+EDR
Transmission distance: 10 meters
Charging duration: 2.5-3 hours
Working hours: 10 hours
Standby time: 150 hours
Battery: 200mAh
Functions: Adjust volume, switch songs, answer calls, reject calls, hang up calls, play via Bluetooth, replay calls, reconnect via Bluetooth, voice prompts, battery level display, MP3, sirs wake-up