Feature: Power supply Single supply voltage 3.4~4.2V Power saving Current in sleep mode: <5mA Radio frequency bands Please refer to the table 1 Transmitting power GSM/GPRS power class: --EGSM900: 4 (2W) --DCS1800: 1 (1W) EDGE power class: --EGSM900: E2 (0.5W) --DCS1800: E1 (0.4W) CDMA 1X power class: 3 (0.25W) UMTS power class: --WCDMA :3 (0.25W) --EVDO: 3 (0.25W): --TD-SCDMA: 2 (0.25W) LTE power class: 3 (0.25W) Data Transmission Throughput GPRS multi-slot class 12 EDGE multi-slot class 12 UMTS R99 speed: 384 kbps DL/UL HSPA+: 5.76 Mbps(UL) 42 Mbps(DL) TD-HSDPA/HSUPA: 2.2 Mbps(UL) 2.8 Mbps(DL) CDMA EVDO:Rev-0,Rev-A, Rev-B LTE CAT 4: 150 Mbps (DL) LTE CAT 4: 50 Mbps (UL) Antenna GSM/UMTS/LTE main antenna. UMTS/LTE auxiliary antenna GNSS antenna GNSS GNSS engine (GPS,GLONASS and BD) Protocol: NMEA SMS MT, MO, CB, Text and PDU mode SMS storage: USIM card or ME(default) Transmission of SMS alternatively over CS or PS. USIM interface Support identity card: 1.8V/ 3V USIM application toolkit Support SAT class 3, GSM 11.14 Release 98 Support USAT Phonebook management Support phonebook types: DC,MC,RC,SM,ME,FD,ON,LD,EN Audio feature Support PCM interface Only support PCM master mode and short frame sync, 16-bit linear data formats UART interface A full modem serial port by default Baud rate: 300bps to 4Mbps(default:115200bps) Autobauding baud rate: 9600,19200,38400,57600,115200bps Can be used as the AT commands or data stream channel Support RTS/CTS hardware handshake Multiplex abili