ITEM NAME:Multi-Function ESP-32S Development Board Wireless WiFi + Bluetooth 2 In 1 AUP Descriptio n Features: High performance-price ratio Small volume, easily embeded to other products Strong function with support LWIP protocol, Freertos Supporting three modes: AP, STA, and AP+STA Supporting Lua program, easily to develop Package included: ESP32 ESP-32S NodeMCU Development Board 2.4GHz WiFi+Bluetooth Dual Mode X1 Introduction: ESP32 is already integrated antenna and RF balun, power amplifier, low-noise amplifiers, filters, and power management module. The entire solution takes up the least amount of printed circuit board area. This board is used with 2.4 GHz dual-mode Wi-Fi and Bluetooth chips by TSMC 40nm low power technology, power and RF properties best, which is safe, reliable, and scalable to a variety of applications. Note: Due to the hand measurement, there have size error about 1-5mm Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same We offer you what you need! Multi-Function ESP-32S Development Board Wireless WiFi + Bluetooth 2 In 1.ESP32 is already integrated antenna and RF balun, power amplifier, low-noise amplifiers, filters. The entire solution takes up the least amount of printed circuit board area. Strong function with support LWIP protocol, Freertos.