The Smart Doorbells are designed to work with most existing mechanical chime boxes. Currently there are no wireless chime boxes compatible with Feit Electric Smart Doorbells.
Each chime box can be wired to two Doorbells, and additional wiring or upgrading is generally not needed.
To connect your Smart Doorbell to an existing mechanical chime box, follow the instructions in this article.
To connect your Smart Doorbell to an existing electronic chime box, follow the instructions in this article.
If you find your chime box is not working with the Doorbell, you may need to replace your transformer. The Doorbell can use up to 6 watts. We recommend using a 12-24VAC 10VA transformer for a single doorbell application. For two doorbells, the recommend using a 20-30VA transformer.