Features:1. control your game: adust your dpi setting(1,000 and 1,600 dpi) for more precise targeting, increased maneuverability or maximum speed.2. optimum performance: high-end optical engine adds precise targeting, pinpoint aracy and consistent response to your gaming arsenal.3. built to last: gaming buttons rated up to 5 million clicks.4. 7 colors backlit displaying.specification:1. brand: hp?2. model: m1003. color: black4. connection: usb wired5. tracking method: infrered optical6. dpi(min/max) dpi7. sensor: sunplus 168a 8. number of buttons: 49. button press distance: 0.7mm10. button press force: 70 ± 10g11. button press life: up to 5 million times12. cable length: 1.5m rubber cable13. rated power: dc 5v,