The device have sensors and microphones that recognize rotation, acceleration, angle of arm and movement of leg to translate those actions into five preset functions that turn your limbs into instruments and allow you to add and control filters on existing tune along with other manipulation.
It seems like Sony has crafted all of these sounds manually and programmed them for certain demos and presets. When I tried the device, it only let me do a limited set of arm motions to alter a couple of songs and play rudimentary digital instruments, using my wrist and my shoulder movements to manipulate and create sounds. The audio itself was played through a Bluetooth speaker.
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