1.Bluetooth version: version 5.0
2.Transmission distance: outdoor straight line distance 10-15 meters
3.Battery capacity: polymer lithium battery
4.Function: fast charging, HD call
5.Listening to music time: 2.5 hours Up and down music / pause playback
6.Call time: 6 hours
7.Standby time:  90 days
8.Charging time: 1-2 hours
9.Product specifications: full set weight: 150g
10.Packing specification: 124*79*33mm