Specification: Candy color ultra thin USB optical wireless mouse 2.4G receiver for computer PC laptop desktop. Slim, ergonomically-designed 2.4 GHz wireless mouse, ideal for home or office use. Compatible for most laptop and desktop computers via USB receiver.(packed in the mouse) Optical tracking technology, works on many different surfaces. 16 wireless working channels, automatic frequency jumping. Type: Wireless Mouse Frequency: 2402MHz-2480MHz Wi-Fi Range: 10m Interface: USB Wireless Transmission Frequency: 2.4GHz Powered Supply: 2 x AA Batteries (Not Included) Size: 11cm x 5.6cm x 1.8cm/4.33" x 2.20" x 0.71" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Operation distance is closely related to the environment. The mouse will shut off automatically and enter sleeping mode for saving power when its not used for a long time. To wake it up, press the right or left button. Package Includes: 1 x Wireless Mouse 1 x USB Receiver