2.4 GHz dual-mode Wi-Fi and Bluetooth development board with 4 MB of flash. Powerful performance in a compact size. Supports LWIP protocol and FreeRTOS. Supports three modes: AP, STA, and AP+STA coexistence mode. Compatible with NodeMCU and MicroPython. Can be programmed using IDE and Lua. Designed to fit on a solderless breadboard for easy development. The 2.4 GHz Wi-Fi and Bluetooth dual-mode chip features low-power 40nm technology, delivering excellent power efficiency and RF performance, ensuring safe, reliable operation and easy integration into various applications. Color: Black Material: Plastic + Metal Package Contents: 1 x Development Board Note: Other items not included. Lighting and display differences may cause slight color variations between the image and the actual product. Measurement error allowance is +/- 1-3 cm.