Slim、 ergonomically-designed 2.4 GHz wireless mouse、 ideal for home or office use. Compatible with most laptop and desktop computers via USB receiver (packed in the mouse) Optical tracking technology、 works on many different surfaces. Wireless working channels、 automatic frequency jumping. Frequency: 2402MHz-2480MHz Wi-Fi Range: 10m app. Powered by AAA batteries (not included) Color: Pink、 Blue、 White、 Black、Green、Red Please leave a note at checkout which color you would prefer、 otherwise color is random. Package Included: 1 x Wireless Mouse 1 x USB Receiver Product Dimensions:4.5 x 0.9 x 2.8 inches