Keyboard size:334.4 x104.6 x3.35 mm( open)

167.2 x104.6 x6.7 mm(folded)

Weight: 166 g

Key working current: {<} 3.5 mA

Working distance: 10 m

Lithium battery capacity: 90 mAh

Working voltage: 3.4-4.2 V

Standby current: 0.04~0.3 mA

Sleep current: 22 μA

Sleep time: Ten minutes

Awaken way : Press key

Charger specifications: 5V ___1A or 2A