2.4GHz 1600DPI Mini Sport Car Shape Wireless Optical Mouse Mice with USB Receiver Rechargeable Blue Compatible with Windows ME/2000/XP/Vista/Win 7/Win 8/MAC OS or Higher Two buttons and one scroll wheel,2 front LED lights. Portable and weight light, very convenient to carry and store Zoom in And Zoom out Function Built-in rechargeable battery,no need power