Cardboard Radio
The Cardboard Radio boasts an extremely simple design and is environmentally friendly. The radios form is simple and concise and adds to its no nonsense appeal – which is a shame, since we can no longer roll out all the bad puns we had planned. The included audio cord allows you to hook up your iPod or MP3 player so that you can play your own personal playlist.

Cardboard Radio Power Specifications:
The Cardboard Radio includes 1x audio input cable and 4x AA batteries. It can also be powered by a DC Power adapter (not included). Ensure it is of the following spec: 100v-240v DC power adaptor, 6 Vdc, up to 600mA, –ve polarity.
100% Customizable:

Check out a complete review of the Cardboard Radio:
"Besides the uniqueness factor and clean simple design what makes that cool is that you can draw on or decorate it in any way you want- grab a sharpie, pen, or some stickers and go crazy! But it’s not just a radio…" Craziest Gadgets. Full Review.