First reported in the blogosphere last November, the speaker allows the user to adjust volume or tune the built-in FM radio simply by moving their hand within the vicinity of the device. The 10-inch tall gadget features two 0.7-watt speakers that can be powered with batteries, AC or USB. The speaker also displays three colorful background lights.

The e-Revolution Motion Speaker is now available for about $120 on AudioCubes.

e-Revoltion Motion Speaker [AudioCubes]