Chime Pro is used to bypass 220v wired mechanical chimes and connects your ring doorbell or any other ring product to a wireless chime. It also extends the Wi-Fi signal from your router to your Ring devices, so you can eliminate Wi-Fi dead zones and stay online. It plugs into any standard power outlet and amplifies your alerts, so you can get Ring notifications in any room of your home – even if you’re not near your phone. Chime Pro is a simple plug-and-play solution. All you need to do is plug Chime Pro into a standard power outlet, connect it to your home Wi-Fi and all your Ring devices, and you are all setup.