Electricity through the air

This is the third pair of AAA batteries that I've used for my wireless optical mouse in less than two months. I don't know whether that's normal or not. Or whether it's because of the mouse's high power consumption or the batteries are no good.

In any case, somebody's got to figure out how to transmit electricity through the air or wireless-ly. And then we can just plug in some gadget into the USB and have that transmit power to the mouse and keyboard aside from having it receive signals from the mouse and keyboard. The same could be applied to remote controls of televisions, DVD players, etc.