... View angle 180degree 3.5 inch LCD Digital Video Door Viewer Peephole Doorbell Security Camera Function Description 1. 3 ... display2. Peephole barrel (diameter) 12-30mm3. Fits any door, 42-72 or 60-90mm ( thickness ),pls confirm the ... play automaticlly .10. Menu seting (menu adjustment include:brightness adjustment,contract adjustment,color adjustment,language selection,date,time,photo's checking,delete ...