Interface:TYPE C /WITH 30CM CABLE
1.Single-feed active noise cancellation (ANC)
2.Chip: 7003D4
3.Wireless: V5.4
4.Working range: 10m
5. Earphone battery capacity: 3.7V 400909, 25mAh (without protection board, without wire, with front spray code: 400909 30mAh) 6.Talk time: 4h
7.Music time: 4h
8.Standby time: 60h
9. Battery box capacity: 3.7V 300mAh (502035, 300mAh with Seiko protection board) 10.Battery box charging time: 2h