Based on ESP32-S3 MCU, it is equipped with Xtensa 32-bit LX7 dual-core processor with a main frequency of up to 240MHzIntegrated 2.4GHz Wi-Fi and Bluetooth LE dual-mode wireless communication, with excellent performanceThe switch input has bidirectional optocoupler isolation, supports passive and active switch input, and the relay supports switch input linkage mode controlOnboard USB Type-C interface, can be used for power supply and download debugging, convenient for development and useOnboard clock chip, supports timing tasksmicrocontroller:ESP32-S3(The default is ESP32-S3-WROOM-1U-N16R8 module, which can be customized)wireless communication:2.4GHz Wi-Fi (802.11 b/g),Bluetooth 5,BLEInterface form:USB Type-CSupply voltage:5VFunction:Device power supply, USB communication, firmware download, etc(The product appearance and printed words depending on the batch, but this does not affect use)Color:As ShownMaterial:ABSPackage Contents:1 * Wi-Fi Network RelayOnly 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.