Most of us had one on our keys at some point. They are great if you want light in the dark. The first problem with Portable keyring torches is that they run out of batteries and become useless. Small battery can be expensive (sometimes costing more than the torch itself!), hard to find, and fiddly to fit in. Wind Up Keychain LED Torch doesn’t requires any battery to works, so you don’t be stuck in dark again. All you need to do is wind and shine. The torch is small and lightweight so it’s extremely portable and the LED’s promise a long lasting lifespan.