"The R-25W features a 520dpi resolution, which AOpen claims is 30% "faster" then any other mouse on the market. It offers a maximum range of 5ft from the receiver, and uses a two channel system with 255 individ ual user ID codes to allow multiple people in the same area to use wireless mice without the fear of radio interference. Those are some pretty compelling specs that compare favourably against mainstream wireless input devices."
FULL STORY @ NEOSEEKER (http://www.neoseeker.com/Articles/Hardware/Reviews/aopenr25w/)