The Arturia MiniFreak is a 6-voice polyphonic hybrid keyboard synthesizer featuring a 37-note velocity-sensitive slim-key keybed with aftertouch. It includes two digital sound engines with 22 oscillator modes, polyphonic analog filters, and VCAs. It also offers three digital FX slots with ten effects, a 64-step sequencer, and a performance arpeggiator, making it a versatile instrument for sound design and performance.