Kitronik MI:sound speaker board for BBC microbit V2 Description The MI:sound board is a speaker board for the BBC microbit. It features on-board; speaker, CR2032 battery holder, thumbwheel 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 https://elecena.pl/product/19046923/mi-sound-speaker-board-for-bbc-microbit-v2 2021-07-12 https://elecena.pl/product/19046923/mi-sound-speaker-board-for-bbc-microbit-v2 2025-07-09