1) . To support EDGE/ GPRS/ GSM850/ 900/ 1800/ 1900MHz/ HSDPA/ UMTS2100MHz. 2) . Qualcomm : MSM6280.Max. 7.2 Mbps downlink and 1.8Mbps uplink 3) . Mini USB standard interface, support hot-swappable plug-and-play 4) .operating system, Windows2000, Windows XP, Windows Vista, Win7 32 Bit, Win7 64 Bit 5) .Support in English and Chinese languages 6) .Support Voice and message