$15.80
1. Bluetooth: 3.0
2. Operating distance: 10 meters
3. Working voltage: 1.9~3.3V
4. Working current: 4V
5. Standby current: 0.5 ma
6. Sleep current: 100 ma
7. Charging current: 100 ma
8. Standby time: 30 days
10. Charging time: 2-3 hours
11. Battery: Built-in 300mAh lithium battery
12. Waterproof: IP67 (not including charger port)
13. System requirements: Mac OS, Windows 98/2000/Vista/7, Android, iOS
14. Waterproof: IP67 (not including charger port)
15. Product size: 360x105x8mm
16. Product weight: 164g