Features:
- Bluetooth Protocol standards: Bluetooth V4.1
- Support: HSP/HFP/A2DP/AVRCP
- Button function: V-/next music/V /previous/pause/play
- Receiver distance: 10m/360 degree
- Battery: Chargeable 3.7v/110mah lithium battery
- Charging time: About 2 hours
- Successive working time: About 6 hours
- Microphone Unit: mems mic
- Frequency Response: 20Hz~20kHZ With magnet 0.2usd higher
