Nicerocker 5500DPI 7 Button LED Optical USB Wired Gaming Mouse Mice For Pro Gamer 5500DPI 7 Button LED Optical USB Wired Gaming Mouse Feature:100% brand new and high quality Buttons: 7 buttons with scroll wheel Package Content: 1 X Gaming Mouse(without retail package) Buttons: 7 buttons with scroll wheel. Compatible with Windows XP, Vista, Windows 7, ME, 2000 and Mac OS