Designed for AAA battery and comes without batteries, and it's compatible with BBC Micro:bit board.
Microbit battery pack switch function: AAA battery holder with ON/OFF switch ; Recessed designed On-Off Switch, more safe, more durable.
Wire Leads: 2 AAA battery holder with wire leads ; Interface: PH2.0. Cable length: About 14cm / 5.5inch.
You will receive 5pcs micro bit battery holder.
If you have any problem, please contact seller as follow: click " DIYmalls-UK"(you can find "Sold by DIYmalls-UK" under Buy Now button), in the new page, click "Ask a question".