1.digital video door viewe 2.3.5inch LCD 3.3.Wide View angle 180degree 3.5 inch LCD Digital Video Door ... Viewer Peephole Doorbell Security Camera Function Description 1. 3.5inch color TFT display2. Peephole barrel (diameter) 12-30mm3. Fits ... Menu seting (menu adjustment include:brightness adjustment,contract adjustment,color adjustment,language selection,date,time,photo's checking,delete photoes ...