Specifications:
Bluetooth: Bluetooth 3.0 interface standard.
Color: Black
Battery Capacity: 200 mA
Uninterrupted Working Time: 100 hours
Operating Distance: Within 4 meters
Standby Time: over 10 days
Charging Current: over 200 mA
Charging interface: Micro USB
Charging Time: 3-4 hours
Key life: 5 million strokes