This Is A 2.4Ghz Wireless Mini Keyboard With A Usb Interface Receiver. Plug And Play, Simple And Smooth. The Mini Keyboard Ensures Easy Typing, And You Can Control The Devices On The Sofa To Enjoy Watching Without Having To Walk To The Tv Or Computer To Change The Channel. Features: With The Included Usb Interface Adapter, No Driver Is Required, Plug And Play. 2.4Ghz Wireless Connection, Enjoy Wireless Control Up To 10 Meters. Five Colour Backlight Effects: Use The Backlit Keyboard Easily And Conveniently In The Dark. 5 Cool Led Lighting Effect Modes (Fn + F2) Can Be Switched Freely. High-Sensitivity Touchpad: Easy To Operate Left Mouse Button (Single Finger Click), Right Mouse Button (Two Finger Click) And Scrolling Screen (Two Finger Drag). The Touch Panel Dpi Is Adjustable. 92-Key Keyboard: The Mini Keyboard Ensures Easy Typing, And You Can Control The Devices On The Sofa. The Keyboard Also Has Automatic Sleep And Automatic Wake-Up Modes. Note: The Usb Dongle Is Located On The Back Of The Keyboard. Specification: Frequency Range: 2.403Ghz-2.480Ghz Working Distance: Up To 10 Meters / 30Ft Working Voltage: 3.3V Working Current: Lt;50Ma Charging Current: Lt;300Ma Sleep Current: Lt;1Ma Colour: Black Main Item Size: 14.5 * 9.6 * 1.8Cm / 5.70 * 3.78 * 0.70In Main Item Weight: 108G / 3.82Oz Packing Size: 17.3 * 11.1 * 2.8 Cm / 6.81 * 4.37 * 1.10 Inches Packaging Weight: 179G / 6.33Oz Packing List: 1*Wireless Keyboard