Had neighbors knocking on my door at 10:00 pm so I installed a security light that included a camera and speaker. Next few times they came over - I could see them, and I played a recorded message that said they were being videoed, and I was not available at the time. This ended the visits. I can also see what is happening remotely (my phone) at my front door 24/7. I can see when my Amazon products are delivered, and can check the weather when I am out of town. Great investment for 200 bucks!