* LCC Form Factor 40 pin
* Dimensions: 16mm × 18mm× 2.3mm
* Band support:GSM850/900/1800/1900
* Transmit Power:
- GSM850/900: 33dBm (Power Class 4)
- GSM1800/1900: 33dBm (Power Class 1)
* Power Supply :
- 3.4V ~ 4.2V (3.8V is recommended)
* Operation temperature: -40°C to +80°C
* Storage temperature: -45°C to +90°C
* Humidity: 5%~ 95%
* GPRS -- Max Uplink 85.6Kbps / Downlink 85.6 Kbps
* 2 x UARTs
* 2 x SIM interfaces (1.8/3V)
* Audio(O x 2, I x 2)
* I2C
* GPIO
* SPI
* RF PAD for Primary Antenna
* Power-on
* Net LED Status Indictor
* ADC
* Embedded TCP/IP
* HTTP connection
* Transparent
* CoAP(In planning)
* TTS/Record(In planning)
* FTP
* CALL
* SMTP(In planning)
* AT Commands according to 3GPP GSM07.05, GSM07.07 and GOSUNCN extended AT commands
* MO and MT
* Text & PDU