The self-powered Light/Radio/Cell Charger utilizes a crank which is folded against the back of the light for power. Turning the crank charges a set of small internal rechargeable cells which then provide power to the rest of the built-in systems. The lighting portion of this device consists of three 5mm LEDs behind focusing lenses. There is also an FM radio and a siren which can be powered by the batteries, and the unit can be used to charge a Nokia type cell phone with the included charger cable. Has 5V phone charger plug, and 1/8" earplug connection.