1. Mouse size: 91 x 55 x 34mm 2. Resolution: 800DPI 3. 1 channel 256 ID 4. 2xAAA batteries 5. Working distance: 1. 5m 6. Freely zooming in/out functions 7. Radio frequency: 27MHz, 360 degrees''''receiving 8. Chargeable Receiver, and mouse can be kept in the Receiver 9. Fit for your left/right hand, or long-time working 10. Be able to work on any surface except glass 11. Smooth design for comfortable touch 12. With fashionable Titanium slace on top and Silicon rubber pads both sides. 13. Built-in USB extension wire can be kept in the charger housing. 14. Up to 6. 4 million pixels/second 15. Running 8 times faster than normal mouse. 16. Buttons life: 3, 000, 000 times 17. Compatibility: Win95/98/2000/ME/XP