There are six buttons. Optical Mouse. Type: Wired USB mode. 3200 DPI is the maximum DPI. Adjustable DPI Settings: 800, 1200, 2400, and 3200 DPI; the software can adjust up to 3200 DPI. 10 million cycles is the switch life. Compatible with MAC, Windows 7, Windows 8, Windows XP, Vista, and more. Ideal for: Office workers and gamers.