1. Model: GP-2
2. Bluetooth version: Bluetooth V4.2
3. Standby time: 200 hours
4. Call time: 5 hours.
5. Music time: 4 hours.
6. Charging time: 2 hours.
7.Frequency response range: 20Hz-20KHz
8. Battery capacity: 110mAh/3.7V
9. Communication distance: 10 meters.
10. Support protocols: HSP HFP A2DP AVRCP
11. Material: CNC metal + ABS + TPE + silicone
12. Weight: 23g