The GSM/GPRS/GNSS HAT with Extended Fittings - Raspberry Pi RoHS manufactured by Waveshare is an addon card for the Raspberry Pi and is intended to add cellular (GSM/GPRS/GNSS) connectivity to the Raspberry Pi. With support for global systems worldwide, the card is perfect for applications such as unmanned vehicles, remote monitoring and control, home automation, and more. The card includes carefully selected parts which are provided with extended fittings to deliver the highest quality experience. Features include channel-porsche C2110A module, UFL antenna connector, and a SIM card socket. Moreover, power management is integrated into the HAT which makes it suitable for mobile and portable applications.