iPhone 4 speaker made from bamboo uses no electricity!
If you’ve got your facts right, might have noticed how amplifying a bamboo can really be. Using just these simple principals, designer Anatoliy Omelchenko came up with a green non-electricity using speaker for the iPhone 4. Using the natural resonance of a bamboo to amplify sound, the bamboo-speaker simply intensifies the stereo effect of the iPhone 4’s speakers. Measuring a foot long, these bamboo speakers are laser cut and finished by hand and are as eco-friendly as ever, given that bamboo grows fast unlike other sources of timber.