Bluetooth version: 5.4 (Jieli AC7003F)
Supported protocols: HSP, HFP, A2DP, AVRCP
Talk time: 9H
Play time: 8H
Charging time: 2H
Battery capacity: 110mAh ( IC without protection board)
Horn diameter: 10mm
Maximum transmission distance: 10m
Input charging standard: DC 5V
Channel System: Stereo
Best call distance: ＜2m