EDGE/GPRS/GSM850/900/1800/1900MHz/HSDPA/UMTS2100MHz-Qualcomm MSM6280 Max 7.2 Mbps downlink and 2.1Mbps uplink-support the short message group to receive and send functions-Support Internet traffic statistics history-Have T-Flash slot, support 4GB-support for mainstream operating system, Windows2000, Windows XP, Windows Vista, Win7 32 Bit, Win7 64 Bit