The tagline reads: "AirJamz is the wearable Air Guitar that you have to see to believe." To be fair, you probably can believe it, especially if you're familiar with Zivix. The company is best known for Jamstik, a small wireless guitar that helps you learn to shred, or play more than just axe-sounds, with your iPhone and iPad. AirJamz is for those that want to forego the whole playing part altogether, and just pretend they're slaying. Imagine Guitar Hero boiled down into a $50 wristband with an accelerometer and an app that "plays" guitar if you strum along in time and you've basically got it. We got to see it in action at SXSW, demoed by some of the world's finest fictional fretboard aficionados.