You must be aware of the hi-tech guitar t-shirt that produces music tracking simple movements of your hands.

Hiwatt Echo-Theremin is similar to that product as it also needs no physical contact as it’s antenna adjusts the pitch of sound in respect to distance of your hand from it. The system also features a display unit and 300 milliseconds of delay that adds more depth and greater ability to create sci-fi sounds.

Via: freshcreation
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