Roland FR-4 XB BK, Compact V-Accordion with buttons, With high-quality sounds, audio recorder, and much more, 92 buttons with velocity sensitivity and 120 bass buttons, Compact housing with low weight, Sound module and user interface from the flagship FR-8X, Headphones and line outputs, 100 Accordion sound sets (67 presets), 162 Orchestral and 32 organ sounds, 3 Sets of drums, Integrated chorus, reverb and rotary effects, Integrated audio recorder, Fast response and high sensitivity from bellows pressure-sensing circuitry, Bellows Resistance Regulator to adjust bellows’ inertia, Powerful, internal amplifier system (2 speakers + 1 tweeter), Easy-to-read LC display, Four expansion slots for access to additional tone libraries (Balkan and Dallape expansions are pre-installed), FR-4 X Editor for convenient programming, USB port and MIDI IN / OUT, USB port for playing and recording audio files, Speakers: 2 x 11 W, Power via power supply or 10 AA batteries, Dimensions (W x D x H): 481 x 270 x 430 mm, Weight: 8.9 kg (without strap and batteries), Power supply included, PSB-7U, Colour: Black