Feature 1. Support the PXT graphical programming interface developed by 2. Support , MACOS, IOS, Android and other operating systems 3. The programming environment is based on WEB , no need to download additional compilers 4. Program the computer through USB programming and emulation 5. The mobile terminal wirelessly writes and emulates the program through Bluetooth. Supports a variety of mainstream programming languages including JAVASRIPT, PHYTHON, MBED C Description board is designed by which to help children at or above 7 grade to learn programming better. board has abundant board resources, including a 5 x 5 LED metric dot array, 2 programmable buttons, Compass, USB ports, Bluetooth module etc.. It is only pocket size but very powerful. You can programming, customize or control it as well. size: 13.1 x 8.2 x 2.3 cm Color as shown material:PC+Metal Please note: The color of the development board may be different due to different batches, but the function is the same Package Contents: 4 x v1.5 board 4 x Quick start guide 4 x 4 x Battery Holder 8 x AAA Batteries 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.