... Viewer Peephole Doorbell Security Camera 3.5 inch LCD Digital Video Door Viewer Peephole Doorbell Security CameraFunction Description: 1. ... (menu adjustment include:brightness adjustment,contract adjustment,color adjustment,language selection,date,time,photo`s checking,delete photoes) 11 ... button for about 10seconds, red led light at right bottom of screen will flash, successfully set ¡don ¡t disturb ¡ ...