... .External Interface: Microphone/ Stereo Speaker (Built-in),3.5mm Audio Output,TF Card Slot, MicroUSB,DC Power Input ... RMVB.MKV,FLV,MP4,3GP,DAT,MOV,TS8.Audio Format,Support MP3,WMA,WAV,AAC,OGG,APE ... 0.6A,Output 5.0V 2.0ABattery,4000mA/3.7V Pm Battery (Equivalently 4500mA Lithium Battery) Standby ... )*9.9(Height);380g13.Operating System,Google Android 2.2/2.3;Support Chinese/English/Japanese/Russian and ...