Features: 100% brand new and high quality ESP32 is already integrated antenna and RF balun, power amplifier, low-noise amplifiers, filters and power management module. This board is used with 2.4 GHz dual-mode Wi-Fi and Bluetooth-compatible chips by TSMC 40nm low power technology High performance-price ratio; Small volume, easily embeded to other products,Safe, reliable, and scalable to a variety of applications. Strong function with support LWIP protocol, Freertos. Supporting three modes: AP, STA, and AP+STA; Supporting Lua program, easily to develop Package Includes: 1 Pc x ESP32 Development Board Specifications: Item: Development Board Model: ESP 32 2.4 GHz Type: Soldered / Unsoldered (Optional) Size: approx 5.15x2.83cm/2.03x1.11in Dual-mode: Wifi+ Bluetooth-compatible Support: LWIP protocol, Freertos note: 1, This shop is only for production and sales. Some products can be customized, but no technical support is provided. As long as you have a certain foundation of electronic technology, you can buy with confidence. 2, Since the tracking information of economical logistics methods can only be updated to your country, if you have not received the package for a long time, you can actively contact the local post office to urge the delivery, if you want complete tracking information and faster delivery , It is recommended to choose a standard type of logistics method.