YWBL-WH Bluetooth Optical Mouse 2.4G Wireless Mouse Optical Mouse 1600DPI for Mac/ME/Windows PC/Tablet Gaming Office-BLUE-

Specification: Type: Wireless Mouse Power: 2 * AAA batteries (NOT included) Switching life: 5 million cycles High resolution: 1600DPI Button: 3 buttons with scroll wheel Wireless carrier frequency: 2402MHz-2480MHz Maximum acceleration: 14 inches per second Wireless: 2.4GHz wireless transmission Working distance: Up to 10 meters Compatible system: For Windows XP / Vista / Windows 7 / ME / 2000 / Mac OS, or later Weight: Approx. 59g Size: Approx. 10 * 5.5 * 3.5cm / 3.9 * 2.2 * 1.4in   Package list: 1 * Wireless Mouse 1 * USB Receiver