1)3 buttons Mini wireless optical mouse
2)27MHZ high technology of ergonomic design
3)800DPI High resolution
4)convenient scroll wheel,working freely on usual surfaces
5)work distance: within 1.5meters
6)radius of 360 degree,Smart automtically sleeping and wake-up saving power function
7)interface:USB,U+P optional
8)unit size:91*43*25mm