ZOWIE GEAR EC2 eVo CL 5 Buttons 1 x Wheel USB Wired Optical 2300 dpi Gaming Mouse Ergonomic right-handed design for increased comfort Developed for competitive gaming; increased performance Easily switch between 125, 500 and 1,000 Hz Adjustable DPI : 450, 1,150, 2,300 DPI ,Perfect lift-off distance: Only 1.5 ~ 1.8 mm 24-step scroll wheel, Different coating choice taken from the ZOWIE FK,Plug and play! No driver needed