ABC&reg; 3200DPI LED Optical 5 Button USB Wired Gaming Mouse for Pc Laptop Black Mouse ABC is a registered trademark and the only authorized seller of abcsell branded products. Ergonomic design, makes you feel natural and comfortable, long fierce game will not feel tired; DPI: 1200dpi Switch Life: 5 million cycle Suitable for game enthusiasts, fashionable young, commercial office crowd, long time computer workers; Compatible with operating systems Window 7Window Vista, Window XP, Mac iOS Adjustable DPI Switch: 800/1200/1600/2400/3200dpi