Incredible new bright LED dynamo lantern which never needs batteries and uses a 120mAh/3.6V Ni-MH chargeable battery. This lantern can also be charged using a 6V external electrical adapter as well. This product can charge a cell phone and has a DC port for those purposes. The energy stored is used to supply the LED Lights and FM radio. It is a perfect emergency or camping item and makes a great gift! The FM tuner comes with a loudspeaker and adjustable volume.