Thank you for your question on the model PB85BR wireless door chime push button. Depending on the wireless chime it is paired with, it can operate at an unobstructed distance of up to 300 feet. Building materials may reduce operating distance. Certain building materials; such as, but not limited to metal, concrete, brick, stucco and foil-lined insulation; cause greater interference than others.
Date published: 2015-11-25