... Display: 3.6 HVAG touch screen, 560k color Dual Sim cards Dual standby,Frequency: 900/1800/850/1900MHzRingtones: Polyphonic (64 ... internal memory. Expanded to maximum 16G TF card Data transmission: Cable insert, card reader, Bluetooth function, Bluetooth voice, ... memory expansion, E-book, incoming call firewall, dual card, dual standby and dual Bluetooth, display land ownership of incoming call, IP ...