SKU : Belumada30 Overview Raspberry PI SIM800 GSM/GPRS Add-on V2.0 is customized for Raspberry Pi interface based on SIM800 quad-band GSM/GPRS/BT module. AT commands can be sent via the serial port on Raspberry Pi, thus functions such as dialing and answering calls, sending and receiving messages and surfing on line can be realized. Moreover, the module supports powering-on and resetting via software. Feature - Quad-Band 850/ 900/ 1800/ 1900 MHz - GPRS multislot class 12 - Operation temperature: -40C to +85 C - Stackable Specification PCB size : 85mm X 56mm X 1.6mm Operation Level : Digital 3.3V DC Interface : UART Baud rate : 9600(default)