1. Modulation System GFSK 2. Efective Operation Distance: Within 10m 3. Operating Voltage: 3-5V 4. Operating Current: ≤2.5MA 5. Standby Current: ≤ 0.3mA 6. 6. Sleeping Current: ≤0.1mA 7. Charging Current: ≥200MA 8. Standby Time : ≥60days/200days (backlighting) 9. Charging Time: 2-3hs 10. Lithium Battery Capacity: 180mA/400mA (backlighting) 11. Uninterrupted Working Time: 150H (without backlight/ 3Н / with backlight ) 12. Lithium Battery Life: 2-3years 13. Key Strength: 8010g 14. Key Life:5 million strokes 15. Operating Temperature: -10+55°C