... memory.single and dual camera compatiblememory761K/512MB, support expansion card,expanded to maximum 2G TF cardData ... card reader, Bluetooth function ,Bluetooth voice, Stereo Bluetooth musicImage formatjpggifDirectories500groups,support group callingincoming ringtones, incoming images and video ... expansion, E-book, incoming call firewall, dual card, dual standby and dual Bluetooth, display land ...