Modern-style wireless doorchimeProduct InformationThe Heath Zenith Wireless Battery Operated Door Chime Kit is a doorchime that provides modern styling with a white color and step design. It features an 8-note Westminster melody or 2-note melody forthe front entrance or 1-note tone for rear entrance with adjustablevolume control to suit varying sound needs. The wireless doorchime kit includes a battery-operated receiver and one battery-operatedpush button with up to 150-feet transmission range between the two. The Heath Zenith Wireless Battery Operated Door Chime Kit isthe no-wires-required way to modernize your door chime.Product Features No wiring needed Battery operated (3 "D" Batteries not included) Up to 150" transmission range 8-Note Westminster or 2-Note Chime Melody (Front Door) 1-Note Rear Door ToneSpecifications Color: White Dimensions: 8" x 4.25" x 2" (Hx W x D) Warranty: Five Year LimitedManufacturer Warranty Power Source: 3 "D" Batteries(not included)