Blink is a smart security that is design for easy installation and easy use for everyone. Set up in minutes, and receive notifications from the app whenever a visitor presses your Video Doorbell or motion is detected. You can also choose to wire it to sound your existing home chime. Blink Video Doorbell lets you answer your door no matter where you are. Receive customizable alerts right from the Blink Home Monitor app, and experience helpful features like HD day and night video and two-way audio. Best part – Blink’s long-battery life technology provides peace of mind for up to two years.