Features: Cool Sport Car Wireless Mouse Cool sport car mouse style mouse, with unique headlight design, works well in the dark at night, will give you special experience in using it. High quality, especially designed for small hands, good choice as gifts.Lightweight and convenient The mini USB receiver can be put inside the car roof of the mouse for easy portability. Light weight and easy to carry it everywhere, it is a good choice for home use and travel. Easy operation No drivers are needed, plug and play.Energy-saving,if mouse is not used for short time, it will turn to power saving mode to save energy How to use 1.Open the car roof cover,Take out the USB receiver 2.Insert 2 AAA battery (NOT included) with correct polarity (+/-), then open the power switch; 3.Insert the mini receiver into computer USB combo; 4.The mouse and receiver will connect in a few seconds,and you can use this sport car mouse directly. Specification: Interface: USB 2.0 Resolution: 1600DPI Tracking Method: Optical Button: 2 Buttons + 1 Scroll Wheel Size: L 4.05* W 2.20 * H 1.39 (inch) Wireless Operate Distance: Up to 10M Battery: 2 x AAA Batteries (Not included) Package Include: 1 * Wireless Sport Car Mouse 1 * USB Receiver (put inside the car roof) 1 *English user Manual All products are tested before delivery,your purchase at our store is guaranteed. If any problem, please contact us we'll supply our best service for you.