1.Bluetooth version: V5.0 + EDR
2.Battery capacity: headphones 40 mAh, charging boxes 500 mAh
3.Transmission distance: 15 meters
4.Continuous call time: 4~6 hours
5.Standby time: 220 hours
6.Charging time: 2 hours
7.Support: HSP, HFP, A2DP, AVRCP
8.Earphone weight: 4.25g
9.Earphone size: 23.5*20*22mm
10.Charging box size: 68*33*27mm