1. variable highlight2. ergonomic symmetric design for right/left hand3. soft touch 4. two additional navigation buttons (forward and back)5. resolution dpi switch 6. precision optical sensor specifications: mouse type: wired optical os compatibility: windows xp/vista/7/8/10mt-m915 mouse fancy ergonomic gaming mouse for computers features: 1. variable highlight 2. ergonomic symmetric design for right/left hand 3. soft touch 4. two additional navigation buttons (forward and back) 5. resolution dpi switch 6. precision optical sensor specifications: mouse type: wired optical os compatibility: windows xp/vista/7/8/10 number of keys: 5 + 1 (scroll wheel) resolution: 800/1200/1600/2400 dpi (sensors: optical a704) interface: usb error-free running time, strokes: more than 3,000,000 cable length: 1.50m dimension: 135*73*42 mm weight: 140g