This doorbell will work for any application - wired or wireless installation||For wireless installation, the doorbell requires 3 "C" batteries (not included) and a wireless push button (sold separately)||For wired installation you will need a 16VAC/10VA low voltage transformer, bell wire and hard wired push button (all sold separately)||Up to 150 ft. transmission range||Adjustable volume control||This doorbell will work for any application - wired or wireless installation||For wireless installation, the doorbell requires 3 "C" batteries (not included) and a wireless push button (sold separately)||For wired installation you will need a 16VAC/10VA low voltage transformer, bell wire and hard wired push button (all sold separately)||Up to 150 ft. transmission range||Adjustable volume control||10 Selectable tunes||Syncs with all Heath Zenith, Utilitech, and Style Selections brand push buttonsview less