The ESP32 integrates antenna switches, RF baluns, power amplifiers, LNAs, filters and power management modules, and the entire solution takes up minimal PCB area. 2.4 GHz Wi-Fi plus Bluetooth dual-mode chip Adopting TSMC's low-power 40nm technology, the power performance and RF performance are the best, safe and reliable, and easy to expand to applications. Cost-effective small volume. Easy to embed in any product Powerful, support LWIP protocol, freertos Support AP, STA, AP+STA coexistence mode three modes Lua programming makes your development easier. Material: PC+Metal colour: As shown Package Contents: 1 x Breakout 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.