Features: 1. Compact and portable: being so mini and light-weight, this product does not take much space and can be easily taken away. 2. Durable material: This product is made of high-quality material, durable, long service time, firm and stable in use. 3. The complete solution takes up the least printed circuit board area. This board is used with 2.4GHz dual-mode WiFi and wireless chips using 40nm TSMC low-power technology. 4. The best power and RF characteristics are safe, reliable and scalable for various applications. 5. Meticulous workmanship: The meticulous design, perfect in workmanship, durable and long service life. Description: ESP-32 has integrated antenna and RF balun, power amplifier, low noise amplifier, filter. Specifications: Size: 5.8* 2.8* 1.2cm Color: black Model: ESP-32 Operating Temperature: -40 ~ +85 Supply Voltage: 3.3V Package Included: 1* ESP-32 development board Notes: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2. Please allow slight dimension difference due to different manual measurement.