1) Features: 3 in 1 function: keyboard， mouse and touchpad. Bluetooth connection makes you enjoy wide range wireless control. Real touchpad: ultra sensitive and multi-touch. Built-in rechargeable lithium battery，supports long time working. Silicone buttons， more comfortable，input more quickly2) Specification: Type: Bluetooth Wireless Connection: 2.4G Wireless Size: 148*65*8 mm Standby time: 173 days Battery Capacity: 250mAh Weight: 70g Material: ABS Working Distance: ��10m Charge voltaget: DC5V Charging Time: 1-2 hours Continual working time: 31 hours Keystrokes: up to 1 million times click Operating System: for windows android imac Application: Desktop， Laptop， Number， Tablet3) Package content: 1* Bluetooth mini touchpad keyboard 1* USB charging cable， 1* User manual