1. Blue Tooth 3.0 interface standard.
2. Operating Distance to 10 meters.
3. Modulation System: GFSK
4. Operating Voltage: 3.0-4.2 V
5. Operating Current: <2.5 mA
6. Standby Current: <0.3 mA
7. Sleeping Current: < 40 uA
8. Charging Current: > 100 mA
9. Standby Time: 100 days
10. Charging Time: 2-3 hours
11. Battery Capacity: 250 mAh
12. Uninterrupted Working Time: 100 hours
13. Lithium Battery Life: 3 years
14. Key Strength: 80±10g
15. Key Life: 5 million strokes
16. Operating Temperature: -10 ~ +55℃