Wireless Optical Mouse

Features:1) 27mhz radio frequency and single channel2) deluxe ergonomics design to comfortable hand touch3) auto smart sleep and wake-up function, lower working current4) operating range 1.5 meters in normal environment5) 800dpi hardware resolution6) insert the mini usb receiver into the mouse bodyWhen it is not in use.7) compatible with windows nt,95,98,2000, me, xp8) button life: Over 2,000,000 times9) working on any surface except glass