Features: 1. English QWERTY Keyboard Layout. (Other Language Keyboard Layouts Are Not Supported). Compact And Ultra-Portable On The Move.2. Lithium-Ion Polymer Rechargeable Battery. Truly Portable Design: Perfect .3. Good Durability (No Moving Parts Inside). Full-Size Key Spacing And Shortcut Keys For Easy Operation.4. No Need For A Physical Keyboard, Small Size And Easy To Carry, This Projection Keyboard Can Adapt To Most Working Environments. Easily Connect Via Bluetooth 2.0 HID Profile Version. Or USB. Connect Major Devices Like Tablets, Smartphones, Desktop Computers And .5. As A New Type Of Input Device, It Uses The Built-In Infrared Laser Transmitter To Project The Standard Keyboard Onto The Work Surface, Locate The Click Position, And Input Information Through Optical Recognition.Description:1. Keyboard Size: About 9cm x 4.5cm x 5cm2. Projection Size: About 10cm x 25cm3. Connection : Usb Cable, Bluetooth (With Bluetooth Chip)4. Battery Capacity: 2500mAh(MAX)@3.7V5. Battery Life: 6 Hours6. Main Functions: Stand Function, Power Bank Function, Usb Cable, Direct Connection To Computer Keyboard Function, Mouse FunctionMaterial: ABScolour: WhitePackage Contents:1 x Wireless Keyboard1 x Data Cable1 x English ManualOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.