This chime can be installed wired or wireless. Wireless installation requires 3C batteries and a wireless push button (not included). for wired installation it requires a 16VAC/10VA transformer and a wired push button (not included). The Chime has a range from the push button of 250 feet. it includes 10 different doorbell tones with adjustable volume. The tones are: Ding-Dong, Traditional Westminster, Traditional Whittington, Bell Whittington, Short Westminster, Birthday Celebration, Auld Lang Syne, Beethoven's 5th, We Wish You a Merry Christmas and Star Spangled Banner. It has a brushed nickel finished with plastic components. Covered under a 1 year manufacturer warranty.