... Touch Screen(two point touch),achieve pages and images zoom in and outI/O Port1*24pin USB ,1*Headphone ,1 ... *TF card readerAudio3.5mm headphone jackHigh-quality stereo loud speakerBuilt-in microphoneMedia FileAudio file formats supported: MP2, MP3, WAV, AAC, ... file formats support: JPG, JPEG, BMP, and PNG.CameraBuilt-in 30,0000 pixels cameraPower adapter9V,1.5ABatteryBattery capacity:1800maSize19.85cm ...