1. Programs can be quickly completed through standard libraries and simple development languages to verify solution and product development. 2. The product does not use popular WIFI, LoRa and other modules, but special modulation is made according to the needs of its own products, which can better match the products themselves. 3. Three wireless communication protocols ESP32 chip, support WIFI, BLE4.2, and LoRa wireless communication functions. 4. Shield and strong anti-interference module are equipped with a shield cover, which greatly improves the anti-interference ability of the product. 5. The upgraded version is smaller and more energy efficient. The traditional wireless module is better integrated, the product is smaller, and the energy consumption is lower. Power: USB, lithium battery Storage: 64M-Bits FLASH Sleep current: 800UA Compatible Audio and Video Equipment Style: Professional Audio Equipment Name: for ESP32 +LORa development board Model: ESP32 Main frequency: 240MHZ LoRa chip: 's SX1276 chip Supported frequency bands: 433, 470, 868, 915 MHz Transmission distance: 6km in the open area WiFi speed: 150Mbps Bluetooth: 4.2 Screen: 0.49 inch OLED screen Size: 60*23*8mm Color: Black Material: metal, pc Package Contents: 1 * Module 2 * Pin header Only the above package content, other products are not included. Note: Light 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.