Product Feature: 1. Interface type: USB 2. Dimensions: 124*85*38mm 3. Weight:137g +/- 5g 4. Amount of keys: 6 keys 5. Working mode: Optical 6. Resolution: 600/1200/1800/2400 Adjustable DPI 7. Frame Rate: 3200 8. Button life: 8,000,000 times 9. OS: support Window X86, X64, Win 8, Win 7, Vista, XP, Macintosh(Mac mini ready!), OSX 10.2, Linux