Roland PCR-1 Audio Interface & MIDI Keyboard Controller The mobile DJ will appreciate that the PCR-1 can use the same control maps as its big brothers in the PCR series of keyboards. Home-recording musician will love the PCR-1 for its 24-bit/96kHz audio performance capability 25 assignable controllers - The PCR-1 offers 8 assignable knobs & 6 assignable buttons. RCA Input, RCA, 1/8 Headphone/Optical output Includes PCR-Editor & Gigbag Shift button to change the function of the 8 knobs & 3 of the 6 assignable buttons for a total of 25 controllable parameters