אקורדיון כפתורים Roland FR-4XB בצבע שחור   92 right-hand and 120 left-hand buttonsCompact and lightweightSound module and user interface from the flagship FR-8xb100 accordion sound sets (including 67 pre-loaded sets), 162 orchestral sounds, 32 organ sounds, 3 drum soundsBuilt-in chorus, reverb, and rotary effectsFast response and high sensitivity from bellows pressure-sensing circuitryBellows Resistance Regulator to adjust bellows’ inertiaCharacter-type LCD screenFour expansion slots for access to additional tone libraries (Balkan and Dallapè expansions are pre-installed)Powerful onboard amplification system (two speakers + one tweeter)Headphones and line outputsOnboard audio recorderUSB connection and MIDI I/OUSB memory port for song playback and recordingPowered by AC adaptor or 10 AA-size batteriesDedicated FR-4x Editor softwareAvailable in black or red; made in Italy