Another small synth from Bleep Labs, the Nebulophone is more robust than the Pico Paso. It packs three potentiometer knobs, two buttons, an LED/light sensor combo that serves as an analog low-pass filter, and a unique piano-like series of pads on the PCB that you can control with an alligator clip. It has a programmable sequencer, outputs six octaves, and features six arpeggio modes. For remote control fun, you can clock the arpeggiator over IR. Like the Pico Paso, you’ll need to plug the synth into an amp to get any sound out of it.