buttonbox

2. A small box-shaped musical instrument with buttons that you press to make music.

He played a lively tune on his buttonbox at the folk festival.

3. A handheld device or panel with many buttons used to control something.

The old arcade machine had a big buttonbox for each player.

4. A compartment in a sewing machine or craft organizer for storing buttons.

She sorted her buttons into the buttonbox drawer of her sewing table.