Model：BT-089S
Keyboard size: 304.31 x 98.12 x 9.86 mm ( open )
152 x 98.12 x 19.83 mm (folding)
Key working current: < 3 mA
Weight: 218 g
Working distance: 8-10 m
Standby current: < 1.0 mA
Lithium battery capacity: 140 mAh Sleep current: < 20 μA
Working voltage: 3.7 V
Sleep time: Ten minutes
Charger specifications: 5V_=_1A or 2A
Awaken way : Press key