The eGear Dynamo DYNO-MITE LED Keychain Flashlight is a two-LED light that features a wind-up recharger that never needs batteries. Simply give the built-in winder a few turns to get bright light from this flashlight that will light your way. With a convenient keychain loop that can attach to your keys, purse, or bookbag, the eGear Dynamo DYNO-MITE LED Keychain Flashlight is the always-ready light that needs no batteries to work.