Feature:
It supports text messaging, phone, GPRS data,HTTP protocol support, DTMF decoding, MMS, recording function, Bluetooth, TTS function and so on
Power supply: 5V-20V, please supply 2A or more current when using 5V power.
Power supply interface: 2.54MM pin or MICRO USB interface.
Suitable for Raspberry Pi.

Specification:
Interface: UART TTL level interface
Baud rate: adaptive (default), support 2400-115200
SIM Kaka seat interface: MICRO SIM Kaka stand
Antenna interface: SMA, IPX antenna interface
Working temperature: -45℃-80℃
Speech interface: 3.5MM voice Mike interface
Material: Electronic Element
Color: Blue & Silver
Size: 66*45.5*19.5mm