If you want to party in a green way, then you must start pedaling the Rock the Bike and get some rock n’ roll music from the power your pedaling effort provide. Yes! You read it right. Rock The Bike is a company that specializes in bringing good music to the people via pedal power. During the show, two from the audience must volunteer to do the pedaling of the stationary bicycles and the music will continue to flow. The music system of Rock The Bike uses an energy efficient and low-power speakers like the PRS series from JBL. Though these are low powered, they still provide crisp sound and are in small package for easy transportation.
Source: Rock The Bike via Ecofriend