Stylophone, use a stylus to make it sound, but the resemblance with
the legendary instrument by Dubreq ends here. Built and designed by BleepLabs in Austin, the
Neboluphone has lots of knobs and buttons to alter the waveform
decay, arpeggio, portamento or low pass filter. It has a
programmable sequencer for creating new arpeggios, and may
synchronize with other devices via infrared control.
It is programmed in Arduino open-source licensed, so If you on an Arduino board, you can download the code and make your own hacks.
It hasn't internal speaker, so you must connect using the output jack. It is powered by a 9V battery (not included), and it sounds like this: