Due to it's high quality 37 key keyboard 4 set of reeds on treble and 4 set of reeds on bass side, this instrument is in particular adequate for standard, skilled or professional players, teachers at music schools and students. It is an accordion with 11 registers on treble side, 37 keys and 80+36 bass buttons. Included are case and shoulder straps. Color: White.SpecsKeys Treble Side: 37Buttons Bass Side: 80+36Registers Treble Side: 11Range: f - f'''Weight: 10,2 kgDimensions H x D: 454 x 200 x 400 mmInclusive: Case and Straps.