华为E220

·         HSDPA/UMTS 2100MHz and GSM/GPRS/EDGE 900/1800/1900 MHz

·         HSDPA packet data service with a maximum transmission rate of 3.6Mbps

·         UMTS packet domain data service with a maximum transmission rate of 384kbps

·         EDGE packet data service with a maximum transmission rate of 236.8kbps

·         GPRS packet data service with a maximum transmission rate of 85.6kbps

·         Circuit switched(CS) data service based on UMTS and GSM

·         SMS service based on CS and PS domain of GSM and UMTS: supporting group transmission of messages

·         Standard Mini USB interface, convenient for use

·         Operating system: supportingWindows 2000 and Windows XP

·         Weight: < 50g