crank on technabob...

Ever find yourself out and about when your cell phone runs out of juice? Did you know you can recharge your portable gadgets anywhere, even when there’s no available power source?

Just plug your gadgets into this handy hand crank charger and get to cranking. The SUPERBattery from Datexx lets you juice up your electronic…

This unique MP3 player never needs batteries. That’s because it runs on your own hand-cranked power.

It may not be the prettiest media player ever made, but that’s because it needs room for the mechanical device that converts your energy into power. One minute of winding will give you about forty minutes of play time.…

This electronic kit from Japan looks like a traditional music box from the outside, but when you open up the cover, it reveals an array of electronics that play music read from specially encoded music sheets.

Elekit’s OTOKIBAKO plays music data from strips of paper with black and white bars on them. You can generate…