The Music Booster is mobile sound system that requires no external power. Basically it is a bunch of speakers and audio equipment attached to an adult tricycle and probably powered by a couple car batteries. The entire project is pretty sweet. Nice craftsmanship and work put into creating this thing, but the overall idea is a little wonky. What the hell would you do with this? Walk down the streets making everyone listen to your favorite no-name indie bands?
Oh well, I'll let you crazy artists make whatever the hell you want. Bitchin' wheels, though. You should look into taking that thing off-road. Maybe down some sweet hills or on some big jumps.