This battery box upgrade has a built-in on/off switch and has the same connector as used on the BBC micro:bit. Using this box makes it much easier to switch your micro:bit on and off and will help to protect the fragile connector on your micro:bit. * Battery holder upgrade * Built-in on/off switch * Avoids repeated plugging and unplugging * Holds 2x AAA batteries * Connector fully compatible with the BBC micro:bit * Batteries not included ¬