QUICK SPECS:
- Through the USB to TTL module
- Battery power supply interface;
- Contains 2 LED light, convenient debugging;
- Contains a set of TTL serial interface, compatible with 2.85 V, 3.3 V, 5 V system
- Supports:
- SMS Features
- Telephone
- GPRS data
- HTTP protocol
- DTMF decoding
- MMS
- Recording function