BBC Mini: bit is one of the most popular STME education products in the world. Microbit V2 board size is relatively small, it comes with abundant resources. It supports multiple programming languages such as, MakeCode/JavaScript/Python. It can transmit data through its built-in Bluetooth/wireless function. Compared with other controllers, Mini: bit programming operation steps are simpler, which is suitable for beginners and young children. Material: plastic+metal colour: black Package Contents: 1 x Motherboard (Due to the product batch of different products, the color of the development board may be different, but the function is the same!) 1 x Expansion board to 5V power supply IO improvement board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.