... memory512MB+256MB, support expansion card,expanded to maximum 8G TF cardData transmission cable insert, card reader, Bluetooth function ,Bluetooth ... Gravity-sensing music shift,slide to unlock, incoming call turn-to-mute, wallpaper changeSpecial function Unique design of the plug- ... memory expansion, E-book, incoming call firewall, dual card, dual standby and dual Bluetooth, display land ownership of ...