The only catch with modern day wireless mice is that you need to have some sort of battery, which means you either have to remember to charge it, or remember to buy extra batteries. Both are hassles. Not anymore though, because A4Tech has come out with a battery-free wireless mouse. And it actually works, although there is a catch.

What is that catch you say? Well, the functionality must first be explained: how exactly does this mouse get its power? With a few magical chants and waves, coupled with the powers of electromagnetic induction, this thing is able to get its power from its special USB mousepad. There lies the problem, in order for the mouse to work, it must be on the mousepad, otherwise you’re out of luck. Having to carry around the special mousepad everywhere you want to use this mouse makes portability an issue, but for your home, it’s great.

Because this mouse needs no batteries, it’s pretty much the lightest wireless mouse you’ll find on the market today. Chances are, you wouldn’t even be able to guess it was wireless. Other than that, the features are standard: 800 dpi resolution, scroll wheel, and the essential left/right buttons.

Those lucky Koreans, they’re always getting the cool gadgets before us, and that’s if those gadgets ever end up here in the first place. Yep, A4Tech’s battery free wireless mouse is a Korea-only product right now, and in case you wanted to know, it costs about $20.

[via Uber Gizmo]