SPECIFICATION
Bluetooth version: 5.3
Call time: About 3.5 hrs
Play time: About 3.5 hrs
Transmission distance: About 10m
Standby time: about 40 hrs for headphones about 300 hrs for standby with charging case
Earbud charging time: About 2 hrs
Box charging time: About 2 hrs
Bluetooth protocol: HFP/A2DP/HSP/AVRCP
Earphone batiery capacity: 3.7V 25mAh
Charging box batiery capacity: 3.7V 300mAh
