... for traveller 4. CB CE FCC 2.4GHz Wireless Optical Mouse, w/ Micro Receiver Main Features:-Wireless USB 2.4G technology ,reach to 10 meters ... shiney surface-Comfortable,cordless.as stable as a wired mouse-No drivers needed, plug and play-Mini size ,idea for note book ... -DPI changeable ,800dpi or 1600dpi choice for you-4D wireless optical mouse ...