*? Bluetooth standard: Bluetooth v3.0
*? Modulation system: FHSS 2.4G
*? keys standard: 82 keys
* Working distance: 10m
* Transmitting power: Class 2
* Working voltage: 3.0 5.0 V
*? Working current:
* Standby current:
*? Sleeping current:
*? Charging current: －100 mA
*? Standby time: 55 days
* Uninterrupted working time: 55 hours
* Lithium-ion battery capacity: 160 mAh
*? Charging time: 4 - 4.5 hours
*? Key strength: 80＼ 10g
* Key life: 500 million strokes