1.Support quad-band, universal worldwide;
2.Automatically connect to the network. The module is powered on automatically to connect to the network, no need to press the button to power on, saving time and more convenient;
3.Support Bluetooth:IEEE802.15 Bluetooth standard, 2.4GHz working frequency band;
4.On-board original SIM800C GSM/GPRS module;
5.On-board CH340T USB to serial port chip, easy to install and high compatibility;
6.Self-elastic SIM card slot design, can be used 2G/3G/4G Micro SIM and Nano card;
7.Support SMS messaging and provide management software;
8.Provide full set instruction of host computer source code (c#, vb) for reference;
9.Support GPRS data transmission under 2G network, which can be applied to mobile meter reading and other occasions;
10.It works with LED indicator, when there is no network, no SIM card or SIM card is inserted, the LED light flashes quickly in 1 second interval, and it flashes every 3 seconds if normally work.