SPECIFICATION
Bluetooth version:5.3
Call time: About 4 hrs
Play time: About 4 hrs
Transmission distance: About 10m
Standby time: About 50 hrs for headphones about 300 hrs for standby with charging case
Earbud charging time: About 1 hr
Box charging time: About 2.5 hrs
Bluetooth protocol: HFP/A2DP/HSP/AVRCP
Earphone batiery capacity: 3.7V 25mAh
Charging box batiery capacity: 3.7V 300mAh
