Part Number: GSM/GPRS/GNSS HAT GSM/GPRS/GNSS/Bluetooth HAT for Raspberry Pi, Based on SIM868 This is a handy, low power Raspberry Pi HAT which features multi communication functionalities: GSM, GPRS, GNSS and Bluetooth. It allows your Pi to easily make a telephone call, send messages, connect to wireless Internet, global position, transfer data via Bluetooth, and so on. Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards Supports SMS, phone call, GPRS, DTMF, HTTP, FTP, MMS, email, etc. Support GPS, COMPASS, Glonass, LBS base station positioning, omni-positioning. Bluetooth 3.0, supports data transferring through Bluetooth. Onboard USB TO UART converter CP2102 for UART debugging