GSM A6 modules:

Size: 22.8x16.8x16.8 mm

Working temperature: -30 °c to + 80 °c

Working voltage: 3.3 V to 4.2 V

Start voltage: > 3.4 V

Standby average current: Under 3mA

Support the GSM/GPRS four frequencies, including 850, 900, 1800, 1900MHZ

Sensitivity: < - 105

Support voice calls

Support SMS messages

Support GPRS data service, maximum data rate, download 85.6Kbps, upload 42.8 Kbps

Support standard GSM07.07, 07.05 the AT command and the expansion of Ai Thinker command

Support two serial port, a download serial port, an AT command port

Command support standard AT and TCP/IP command interface

Support digital and analog audio, support HR, FR, EFR, AMR speech coding;

Support the ROHS, FCC, CE, CTA certification;

42 pin SMT packaging