05. 30. 2005
Batteryless and wireless mouse
The A4Tech battery-free wireless optical mouse is powered by nothing else than RFID.
It is in fact powered by the NB-50 mouse pad which has a cord and connects to the computer via USB. So the mouse is cordless, the pad is not. To get energy, the mouse can be about two inches off the pad and you can put various objects between the two without causing significant interference.