1. Bluetooth 3.0 standard interface
2. Effective operation distance: 10 meters
3. Modification method: GFSK
4. Work voltage: 3.0-4.2V
5. Work current: 2.5mA
6. The current of the machine: 0.3mA
7. Sleep current: 40UA
8. Charging current: 200mA
9. Standby time: 100 days
10. Charging time: 3-4 hours
11. Lithium battery capacity: 200mAh
12. Sustainable working time: 100 hours
13. Key life: 5 million times click
14. Size: 25.3 x 20.5 x 2.2cm