The MCU is the ESP32-S3, and the Wi-Fi HaLow module is HT-HC01. Long transmission range, up to over 1-2km. Fast transmission speed, with a maximum of 32 Mbps. Low power consumption design with strong penetration. Integrated 300-pixel wide-angle camera. Supports the for development environment. Integrated SD card slot for easy local deployment and data storage. Integrated CP2102 USB-to-serial chip, convenient for program downloading and debugging information printing. Type-C USB interface with a complete voltage regulator, ESD protection, short circuit protection, shielding, and other protection measures. Integrated Wi-Fi, Bluetooth, and Wi-Fi HaLow three network connections, with onboard 2.4 GHz patch antenna for Wi-Fi and Bluetooth, and reserved (U.FL) interface for Wi-Fi HaLow. Onboard SH1.25-2 battery interface, integrated lithium battery management system (charging and discharging management, overcharge protection, battery power detection, USB/battery power automatic switching). Wi-Fi HaLow Module:HT-HC01(MM6108Q) Serial port chip:CP2102 Wi-Fi :IEEE 802.11ah Memory:384KB ROM; 512KB ; 16KB RTC ; 8M PSRAM, 16MB SiP Flash Interface:HaLow ANT(IPEX1.0); 2x15x1.27 Header Pins, 24P_0.5mm FFC connector(camera), USB Type C, SH1.25-2 battery interface, Micro-SD card holder Power Supply:5V USB, 2.7-4.2V battery Operating temperature:-30C- +85C Operating humidity:10%-90%, no-condensing (The product appearance and printed words depending on the batch, but this does not affect use) Specification:160+ Color: As Shown Material: PCB Package Contents: 1 x Wi-Fi HaLow Module 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.