... 2. View Angle: 170 degree 3. 3.5 Inch LCD Screen 4. Time Setting Outstanding 3.5 inch LCD Screen Door Knocker with Door Viewer 1 ... Doorbell Function Sensor CMOS, 0.3M PixelsView Angle170 degreeDisplay3.5 inch LCD ScreenInstallation & OperationConveniet Operation, Simple Installation, no wiring ... T, Western Union, Paypal3. Delivery Time: 1-3 days for samples, 3-7 days for 100pcs 4. Warranty Time: ...