You can perform with just one unit — the volca sample.
The volca sample is a sample sequencer that lets you edit and sequence up to 100 sample sounds in real time for powerful live performances. It’s a powerful addition to any existing volca setup, or simply on its own. The new volca lets you recapture the excitement of the first generation of samplers, in which any sound — vocals, spoken words, ambient sound, or glitches — becomes material for your creations!
*Sample input only possible via special iOS app