Newhouse Hardware CHM3D Door Chime, White FeaturesDIMENSIONS: Cover: 8. 25” L x 5. 5” W Base: 6. 63” L x 4. 75” WTWO SOUNDS: Classic two-note “Ding Dong” sound for the front door button and has an additional connection with a separate "Dong" for the rear or side door.Please do not purchase the chime from the ".NEW version white" listing as this chime is not coming directly from Newhouse Hardware.COMPATIBILITY: Use with a 16-volt/10 VA or 16-volt/15 VA transformer (not included) when connecting to a regular doorbell. Search “16TR” or "3TRAN" for a compatible transformer.QUALITY: Doorbell chime maintains a textured white modern finish. Easy to install to your doorbell button and doorbell transformer. Backed by a 2-year limited . .PLEASE NOTE: If you would like to hear the sounds of the chime, please see the video that is with the images on the left hand side of this item page. .