MonkMakes Speaker Board for micro:bit ozobot It runs very cool due

It runs very cool due to its up to 90% efficiency allowing the whole unit (Raspberry Pi + NanoSound DAC + NanoSound Amp^2) to be powered by one single microUSB cable with 5V 2A (or  individually if you choose to)

Compliance

Rich configuration

The editors will support both versions simultaneously for features common to both boards

Then place a pair of 3V 2050 battery into the battery socket of power:bit

MonkMakes Speaker Board for micro:bit ozobot It runs very cool dueThe MonkMakes Speaker for micro: bit is a neat little amplified speaker that connects to the micro: bit using alligator clips. Despite its small size, the speaker is pretty loud. Please note that the individual boards are packed in antistatic bubblewrap bags.