3G USB HSDPA MODEM 1DL 7.2Mbps, 2HSDPA/UMTS 2100MHz,GSM900/1800/1900 MHz. 3SUPPORT VOICE CALL 4SUPPORT MAC OS 3G USB modem supporting voice , APN, for newest Ipad, notebook ... Vista/Windows2000/windows7Support Andriod MAC support Allwinner, VIA, Rockchip, Andriod MID 3G USB modem supporting voice , APN, for newest Ipad, notebook, tablet pc