The Stylophone Theremin is a portable, touch-sensitive analog synthesizer created by Dubreq that blends the hand-movement pitch control of a traditional theremin with manual synth controls. It retails for $129.95
Unlike a traditional theremin—which uses two antennas to independently control pitch and volume—this device uses one antenna for pitch control and replaces the volume antenna with an envelope trigger button, a manual pitch slider, and various built-in effects