This great little multi-function gadget unites three devices in one: Radio ,Torch, Mobile phone charger. All of this and it does not require any batteries, just wind up and all three functions are provided with enough power to function.
In fact, winding for about 3 minutes whilst attached to a mobile phone will provide enough battery power for about 2-8 minutes of mobile talk time or 20-50 minutes of stand-by time.
Not only is the Dynamo radio/torch mobile charger a great way to start saving energy and batteries, it's ideal for emergencies at home, when camping, fishing, driving etc. With one minute of winding providing up to 15 minutes of radio listening.