This is a 2.4GHz wireless keyboard with 92 keys and a touch pad. The touchpad has the DPI adjustable function. Mini keyboard with the multimedia control key and the PC game control key. Automatic sleep and automatic wake-up modes can save energy. Ergonomic handheld design, easy to carry and operate. Item Name: Wireless Keyboard type: three-color backlight Language: English Battery: Lithium Battery Working Range: Max. 10m (Barrier Free) Transmitting Power: Max. +5dB Working Voltage: 3.3V Working Current: Less than 50mA Sleep Current: Less than 1mA Compatible System: for Window 2000/XP/7 Features: Portable, with Touchpad, Ergonomic Colour:Black Material:plastic Size:14.8x9.8x2cm Package Contents: 1 x keyboard 1 x USB receiver 1 x USB cable 1 x English manual Only 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store