... Send Fax. Technical Index Chipset: CLASS4 GPRS module Terminal Type: Class B,Type II Working Frequency: Quad-Band GSM 850/900 ... /1800/1900 MHzTransmission Power: Class 4(2W EGSM850/900MHz) Class 1(1W GSM1800/PCS1900MHz)Multislot class : Multislot class 10(Send/Recieve slot collocation ... Supply: 5VdcCurrent (Typical)Active Mode:550mA, ave.(2W, Multislot Class 10)Idle Mode:50mAOff Mode:1mA