Bluetooth Ultra-thin Wireless Keyboard Black Features: ▣ Ultra-thin and portable, comfortable feel. ▣ Low noise operation, endurance lasting. ▣ Ergonomics, make the office more efficient ▣ 3-modes can be switched freely, rechargeable lithium battery Technical Specification: ▣ Keyboard Size: 286.4 x 122.6 x 12.2 mm ▣ Weight: 276 g ▣ Working distance: 10 m ▣ Lithium battery: 180 mAh ▣ Key working current: <2 mA ▣ Standby current: <0.4 mA Product Color: Black For More Keyboard Click Here