If you ask me what is the most eco-friendly speakers ever made, then I should be able to answer that question with this CardBoard Speakers available at UrbanOutfitter. This is Universal ECO speakers was made with 70% recycled material and it’s very green because less plastic is included in its production.
The beauty of this Universal ECO Speaker is the cardboard design. In the box, you will find two flattened speakers and several color pencils included. The meaning behind that “Design-It-Yourself” is to invite you to draw whatever possible into the plain brown cardboard and pour your creativity in it.
This ECO speaker is compatible with most MP3/MP4/PMP that have the similar audio output jack with iPod.
You can either fold the cardboard into a cube box or just leave it flat. Both shape should produces the same amount of sound and no loss in the quality. Universal ECO Speakers is available at Urban Outfitters for $25 only. Go there if you want some.