The Kitronik MI sound board is a speaker board for the BBC microbit. It features on-board speaker, CR2032 battery holder, thumb wheel volume control and an easy access on/off switch. The MI:sound board can either be powered by the CR2032 battery (provided) or via the micro:bit USB or JST connections. It has been designed to work with micro:bit V1 and micro:bit V2.
Power your BBC micro:bit from a stylish PCB On-board speaker and it's loud Thumb wheel operated potentiometer volume control