Hoco S7 Delight Wireless headset earphone with mic

1. Wireless specification: BT V5.0 BK3266.
2. Support protocols Headset, Hands-free, A2DP, AVRCP.
3. Charging voltage DC5V, charging time about 1.5 hours.
4. Battery capacity: 50mAh.
5: Size 97*45*18mm, weight 9g.
6. Calls / music time: 4 hours, standby time: 80 hours.
7. Digital noise reduction function.