If you run out of batteries when listening to your MP3 player, you might get frustrated if there is no way of charging it right away. However, if you have a hand crank MP3 player like the one pictured here, you are good to go at any time of the day. 1 minute of cranking will provide you with 10 minutes of play time. Increase that to 60 minutes of cranking then you will get 10 hours as well as a butch arm.
If you get fed up of winding the crank then there are 2 other ways to power the MP3 player. You can power it via a USB port or with the AC adapter.
The Hank Crank MP3 player is fairly standard with 1Gb of internal memory and supports MP3 and WMA files. A flash light is also built in.
Product Page Via: Gadgetizer