Hohner Mattia IV 96 BK white Buttons, Accordion, 37 White treble buttons, 4 Reed ranks, 11 Treble registers, 96 Bass keys, 2 Reed ranks in the Casotto, 16' + 8' Feet in the Cassotto, 7 Standard bass ranks, 7 Standard bass registers, H2 reed plate quality, Seamless sound projection with Omni sound, Slim keyboard for fast playing, Colour: Black, Weight: 10.6 kg, Alcantara carrying strap and hard case included