LED Working temperature -30 ° to + 80 °

• Operating Voltage 3.4V
• Standby average current 3ma less
• Support the GSM / GPRS four bands, including 850,900,1800,1900MHZ
• GPRS Class 10
• Sensitivity <-105
• Support voice calls
• Support SMS text messaging
• Support GPRS data traffic, the maximum data rate, download 85.6Kbps, upload 42.8Kbps
• Supports standard GSM07.07,07.05 AT commands and extended commands Ai Thinker
• Supports two serial ports, a serial port to download an AT command port
• AT command supports the standard AT and TCP / IP command interface
• Support digital audio and analog audio support for HR, FR, EFR, AMR speech coding
• Support ROHS, FCC, CE, CTA certification