micro: bit is a microcontroller of ARM structure designed by BBC. It is only half size of a credit card, onboard with Bluetooth, accelerometer, electronic compass, three buttons, 5x5 LED dot matrix, mainly used for teens programming education.
We specially make this basic starter kit for you to conveniently learn micro:bit, in which includes a micro: bit control board, 1m USB cable and a battery holder with lead ( battery not included, wire length 160mm).
Note that USB cable is for programming the micro:bit. Battery holder is for power supply, and it comes with a switch button, very convenient for controlling.