Ding consists of a button, chime and smartphone app. When the button is pressed the chime rings in your home and also calls your smartphone allowing you to talk to the person at your front door. The button and chime are designed to ensure they feel like part of the same system but are appropriate to their individual locations. The button is available in a variety of colours and finishes that work well with the architecture of the front door. The Ding chime can be placed on the wall or on a flat surface and is easily moved around the home. A choice of fabric finishes give it an interior design aesthetic.