This cranking MP3 player from Thanko Team supports both MP3 and WMA files and has 1GB of internal memory. It also comes with its own flash light which will come in handy if you're far from power sources.
For every minute that you crank, you get ten minutes of music and so on. Hum. The gadget is attractive enough and if you are definitely green to the core, this MP3 is a must have.
Implications - The popularity of self-sufficient items that have a low impact on the environment continues to rise as consumers grow increasingly aware of their carbon footprint. Items that combine environmentally conscious design with financially responsible enhancements will reach a large market of buyers for whom both popular issues are a concern.