Bluetooth version : V5.0
Charging interface : Ios
Power input : DC/5V
Earphone battery : 25mah/3.7v
Support protocol : A2dp/avctp/avdtp/avrcp/hfp
Music time : About 4 hours
Talk time : About 3 hours
Tali time : About 3 hours
Charging time : About 1.5 hours
Charging box battery : 250mah/3.7v