Product features: Buttons: 7 Buttons Optical Mouse. Type: USB wired mode. Max DPI: 3200 DPI. Adjustable DPI settings: 800/1200/2400/3200 DPI, up to 3200 DPI by software. Switch life: 10 million cycles. Compatible for Windows XP, Vista, Windows 7, Windows 8, MAC and so on. Suitable for: Game players & office.