Roland FR-1X BK, Accordion, 26 Keys velocity sensitive, 72 Bass buttons velocity sensitive, 128 Voice polyphony, Treble reed footages 4, Bass reed footages 5, 7 Accordion sets with 8 treble registers, 16 orchestral sounds, 3 bass registers, 3 bass orchestra registers, 5 orchestral chord registers and 8 registration memories, Replication of the accordion sounds like bellows and reeds, LED Display, New bellows sensor, USB port for media storage, MP3 and Wave Player, Effects such as reverb and chorus, Musette tuning, Real-time control for volume, Headphone port, Line Out, MIDI IN/OUT switchable, Battery operation with rechargeable Ni-MH batteries (AA), Speakers: 2 x 7 Watt, Weight: 6.5 kg, Dimensions (H x W x D): 405 x 365 x 195 mm, Colour: Black, Includes: Carrying strap and power adapter (PSB-230EU)