1、Multiple Interfaces: There are peripherals such as SIM7670G 4G communicate module, OV universal camera interface, memory card slot, RGB colorful light, battery slot, battery voltage measurement IC, solar charging interface, etc. on board. 2、High Performance Chip: The for ESP32‑S3R2 adopted is a system on chip (SoC) with integrated low power WiFi and BLE5.0, in addition to external 16MB Flash and 2MB PSRAM. 3、Internal Modules: The Soc's internal hardware cryptographic gas pedal, RNG, HMAC and Digital Signature modules meet the security requirements of the IoT. 4、4G Network: The SIM7670G 4G communicate module is used to provide a mobile network, and combined with for ESP32‑S3R2, it can realize the functions of portable WIFI and IoT digital transmission. 5、Multiple Applications: A variety of low power operating states meet the power consumption requirements in Internet of Things (IoT), mobile devices, outdoor monitoring, smart home, and other application scenarios. Item Type: Development Board Material: PCB Supported Frequency Bands: LTE FDD: B1, B2, B3, B4, B5, B7, B8, B12, B13, B18, B19, B20, B25, B26, B28, B66 LTE TDD: B34, B38, B39, B40, B41 GNSS: GPS, Beidou, GLONASS, Galileo Battery Specification: 1 x Battery (not Included) Powered By: High Performance 32 Bit LX7 Dual Core Processor Up to 240 MHz Support: 2.4 GHz WiFi (802.11 b/g/n) and Bluetooth 5 (LE), Onboard Antenna Internal: 512KB SRAM and 384KB ROM, 2MB PSRAM Overlay and 16MB External Flash Memory Card: Up to 32G (not Included) Size: Approx. 34x31.6x125mm / 1.3x1.2x4.9in 1 x Development Board 1 x FPC Antenna 1 x Pin Header 1 x Wiring Terminal 1 x Screwdriver 1 x Ceramic Antenna 1 x Camera 4 x Double Sided Adhesive 4 x Acrylic Board 1 x Screw Pack 1 x Data Cable