[Specifications & Package]: Power supply: 5V, operating voltage: 5V / 3.3V, operating temperature: -30°C ~ 80°C, storage temperature: -45°C ~ 90°C. And the package includes 1 x SIM7600G-H 4G Module, 1 x LTE Antenna, 1 x GPS External Antenna (B), 2 x USB type A plug to micro plug cable, 1 x RPi screws pack (2pcs), 1 x screwdriver. Moreover, we also offer user manual and schematic to guide you through the setup and use of our product. [Compatibility & Applications]: The GSM expansion board features 40PIN GPIO extended header that is compatible with a range of for Raspberry Pi series boards and for Jetson Nano. Breakout UART control pins, to connect with host boards like for Arduino/ for STM32. It can be applied in various fields, such as remote monitoring, vehicle tracking and management system; ship and aircraft positioning; location services. [Onboard CP2102 Chip & 2 LED Indicators]: Our GSM GPRS GNSS HAT is equipped with USB to UART converter CP2102, allowing for convenient serial port debugging. In addition, the board boasts 2 LED indicators, providing users with a visual representation of the module's operational status. Designed to facilitate efficient and convenient development processes, this expansion board is the perfect tool for debugging and verifying system performance. [Versatile Connectivity]: The GNSS expansion board can realize global positioning function, which supports satellite positioning systems such as GPS, BeiDou, Glonass, GALILEO, QZSS. Seamlessly navigate, track, and connect to the world with advanced positioning capabilities. Equipped with SIM card slot supporting both 1.8V and 3V SIM cards, and TF card slot for storing storing data like files, messages, etc. [Multi-Functional]: It is a 4G expansion board for raspberry pi with GSM, GPRS, GNSS functions. It supports dial-up, telephone call, SMS, TCP, UDP, DTMF, HTTP, FTP, etc. It also support GPS, BeiDou, Glonass, GALILEO, QZSS, LBS base station positioning. With it, your for raspberry pi will easily achieve functions such as making phone calls, sending text messages, wireless internet access, global positioning, data transmission, etc.