Novelty Design: Wireless mouse with sports car shape design, size of the car mouse is 4.05 * 2.17 * 1.38 inch, it is very cool and easy to carry, a perfect gift for kids or friendsEasy to Use: Powered by 2 * AAA batteries (not included). Wireless mouse connects to your computer via USB receiver (stored in the battery compartment), just slide back the cover, you will see it2.4GHz Wireless Technology: Can provide a powerful, reliable connection, operation distance is up to 10 meters. Sleep Mode: If you don't use it for a few minutes, the mouse will automatically enter sleep mode, just press the left or right button to wake upIntelligent Connectivity: No need to code, just plug & play, easy to use. In order to save electricity, if you don't often use it, please turn off the switch of the mouseGood Performance: Work well with Windows 98 / ME / NT / 2000 / XP / Vista / Win 7 / Linux or Mac OS. Works better with mouse pad