Specifications:

• SIM800 module is a GSM/GPRS module.
  Development board to support China Unicom Mobile 2G/3G/4G card.
• DC6-24v wide voltage power supply, which also allows your power system to use Windows RDS server.
  High performance DC-DC power circuit board plus TV protection, allowing the system to improve stability
• Support 3.3V/5V TTL level control, convenient and a variety of commonly used single-chip,
  such as Ar. Doi. No / 51 / STM32, such as communication module separately TX / RX / GND, use and convenience
• With standard serial port interface,
  can be convenient for PC control or debugging
• Headphone and microphone interface,
  convenient to test the GSM voice call function
• With SIM card electrostatic protection chip to connect SIM card when static electricity protection
• All available SIM800 pins,
  which is easy for you to develop various applications of SIM800
• With RTC backup battery
• With NET_STA indicator, it is easy to view the current status of SIM800.
• Board size 83mm*54mm

Package:

1x SIM800C GSM GPRS development module