A4Tech BatteryFree Wireless Mouse@ 2004/11/18
"A4 Tech's release of the NB-30 Battery Free Wireless Optical Mouse could not have come any sooner. No longer do users have to concern themselves with wireless mouse batteries getting low. The NB-30 will always have accurate response and quick cursor control without the annoyance of inserting fresh batteries. Users will never again experience the frustration of a 'locked' mouse cursor because dead batteries are in the mouse and there are no batteries available. With the NB-30's ability to operate without battery replacement, wireless freedom is now totally free."