Cool! Silver Car Shaped Wireless Optical Mouse Beep Beep! Here's a perfect gift for people who love cars: an optical mouse shaped like one! The shape is comfortable and suitable for right or left handed users. Great for kids and adults alike! 102x51x35mm; Requires 2 AAA batteries (not included). Slide roof of car mouse to access battery compartment and USB Receiver. color:shining colorful;2 buttons with scroll wheel Compatible with MS Windows 95/98/Me/2000/XP/NT/Vista MAC OS9 or above