Zmodo Greet - Smart WiFi Video Doorbell Answer the door wherever you are - see and speak to visitors directly from your smartphone Easy setup - use existing wiring for quick installation and connect to WiFi using the free app Smart motion detection - receive an alert and a recorded video clip whenever motion is detected Personalized voice message - a recorded message will play when you can't answer the door On demand access - access live video at any time from your smartphone or the web