... USB/1x3.5mm stereo headphone jack1xjack/ Data transmissionCable insert, card reader, Bluetooth function ,Bluetooth voice, Stereo Bluetooth musicLoudspeakerBuilt-in stereo ... group message sending ,voice recording,WAP,redio play,Bluetooth function,GPRS download,MMS,Memory expansion,E-book,incoming ... call firewall,dual card,dual standby and dual bluetooth,display land ownership of incoming call,Ip talk ...