... single and dual camera compatiblememorymemory128MB, support expansion card,expanded to maximum 2G TF cardData transmissioncable insert, card reader, Bluetooth function ,Bluetooth voice, Stereo Bluetooth ... MMS, memory expansion, E-book, incoming call firewall, dual card, dual standby and dual Bluetooth, display land ownership of incoming call, IP talk, ... Output:4.2V-300mA Dapeng T2000 China mobile phone