Roland VP-03 Vocoder Synthesizer Review

Its proprietary ACB technology models, not the analog waveform, like most virtual analogs, but the components that went into the analog itself, achieving a much closer similarity.

You can stream your MIDI over USB and draw power from it to save battery life.

It's not much bigger than a laptop.

This one is a miniature version of the VP-330 Vocoder Plus, which was hugely popular.