GSM GPRS A6 SIM900A Module SMS Development Board

GSM A6 module:Working temperature -30℃to+80℃;Working voltage 3.3V-4.2V;Starting voltage>3.4V;Standby average current is below 3ma;Support GSM/GPRS, four frequency bands, including 850,900,1800,1900MHZ;Sensitivity <-105;Support voice call;Support SMSSupport GPRS data service, maximum data rate, download 85.6Kbps, upload 42.8Kbps;Support standard GSM07.07,07.05 AT commands and Ai Thinker extended commands;Support 2 serial ports, one download serial port, and one AT command port;Commands support standard AT and TCP/IP command interfaces;Support digital audio and analog audio, support HR, FR, EFR, AMR speech coding;Support ROHS, FCC, CE, CTA certification;SMT 42PIN package