This is a battery box specialized for the BBC micro:bit. Place two AAA batteries into the battery holder and switch it on to supply power to micro:bit via PH2.0 connector.
SKU: PIS-1275
You can buy Crystal Battery Box - 2 x AAA using cryptocurrencies: Bitcoin, Ethereum, Litecoin, Bitcoin Cash, Dogecoin, Dash, XRP, Monero, Zcash, Qtum, Verge.