Thanks for writing. It comes exactly as you see it here with the doorbell button, but not with a chime. It connects to your existing doorbell and is really easy to set up. Since it replaces what's there, you don't need your existing button, just the space to install it.

Where do you get these and how much do they cost? I have five Treeing Walker Coonhounds and this would be PERFECT for my house. (It would be a great fundraiser item for my hound rescue, too, if it's not too costly.)

Thanks for the note. I sell them retail at $49.99 plus $7.50 Shipping and Handling. For fundraisers and wholesale, there is a minimum order of 10 (for the first order, 25 for subsequent orders) which sell for $29.99, 25 for $27.50, and for larger quantities even bigger savings. Please call me at 954-326-2702 to discuss the one for your house and working together moving forward for the hound rescue. Best, David
P.S. -- I needed to look up "treeing walker coonhounds" -- very interesting!