1. Powerful performance: the ESP32 expansion board has a built-in powerful dual-core 32-bit processor, which supports Wi-Fi and bluetooth functions, allowing you to build Internet of Things projects conveniently and quickly. 2. Easy to develop: it is suitable for many development environments and languages, and can be downloaded through the Micro-USB interface, which is very convenient. 3. Rich : it is equipped with quite rich hardware interface resources, which can connect many sensors and other components, basically meeting your needs in the project. 4. Small and portable: ESP32 expansion board is small in size and easy to carry. It can be easily integrated into devices and can be easily handled in scientific research projects and daily practices. Colour:As Shown Material:Plastic Package Contents: 1 * ESP32 expansion 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.