ITEM NAME:ESP32 ESP-32S Development board 2.4GHz Dual-Mode WiFi+Bluetooth Module Antenna ESP32 ESP-32S IOT Development board 2.4GHz Dual-Mode WiFi+Bluetooth Antenna Module SPECIFICATIONS.(The entire solution takes up the least amount of printed circuit board area. 4) Supporting three modes: AP, STA, and AP+STA. Size: approx. 2) Small size, simply embedded to other products.