Hohner Mattia IV 120 BK White Buttons, Accordion, 41 White treble keys, 4 Voices, 13 Treble registers, 120 Basses, 2 Voices in Casotto, 16' + 8' Feet in Cassotto, 5 Standard bass voices, 7 Standard bass registers, H2 Reed plate quality, Seamless sound projection with Omni-Sound, Hohner patented chin registers with dual switching option, Slim keyboard for faster playing, Colour: black, Weight: 11.5 kg, Includes Alcantara straps and hardshell case