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 Westminster, short Westminster, Huntington, relax triplet, shorty, birthday celebration, we wish you A merry Christmas, laud Lang dyne, Beethoven's fifth, ding-dong
