Hohner Compadre Diatonic Accordion Diatonic push-button accordion Great for beginners and advanced users Complements Norteño, Tejana, Vallenato, European folk styles, Americana, rock, and more 31 treble-side buttons and 12 bass-side buttons with 2 voices Gig bag included Tech Specs Type: Button Scale: Diatonic Key: G/C/F Buttons: 31 treble, 12 bass Color: Black Case/Gig Bag: Gig Bag Height: 12.2" Width: 7.5" Weight: 8.8 lbs. Manufacturer Part Number: COGB-N