Serial connection GSM/GPRS module

Model: SIM800L.
GSM/GPRS serial connection module.
SIM800 is a well-known chip for GSM / GPRS (2G mobile network) communication. Insert a SIM card, call, send SMS and connect to the Internet using a microcontroller. This breakout allows these connections in a simple way, it communicates with Arduino over a serial link. It is programmed using Arduino’s already finished libraries. Breakout even comes with a small wire antenna that will be sufficient for testing and use in areas where the signal is good.

Specifications:
Input voltage: 3.7V - 4.2V
GSM antenna connector: IPX and ordinary wire
SIM type: Micro SIM allows calls, SMS/MMS sending, integrated protocols for internet connection (TCP, UDP, HTTP, IP)