... CVBS video input, one way MIC audio.5Audio output One 2.5mm interface,one headphone output, support central intercom.6Video ... D1.7Audio disposalAAC compression,AAC decoding,support two-way intercom function.8MemoryA micro SD POP socket interface,Maximum support ... inch TFT color screen,support video preview,support video playback,photo playback support,support power,video,image preview,photo,palyback ...