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 250 ft. transmission range with 10 selectable tunes and adjustable volume. 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 Syncs with all Heath Zenith, Utilitech, and Style Selections brand push buttons Color/Finish Family: Multiple colors/finishes Manufacturer Color/Finish: Brushed Nickel Type: Chime Chime Height (Inches): 10.12 Chime Width (Inches): 6.89 Batteries Included: Button batteries only (doorbell batteries sold separately) Bell Wire Included: No Button Material: Plastic Chime Material: Plastic Decibel Rating (Decibels): 87 Doorbell Extender Included: No Doorbell Voltage: 16 Field of View (Degrees): 0 Mute Timer: No Night Light: No Number of Sound Selections: 10 Operating Range (Feet): 100 Power Source: Battery-operated Sound Type: Melody/Tune Transformer Included: No Volume Control: Yes Warranty: 1-year Bluetooth Compatibility: No Connectivity: Wired or wireless Smart Compatible: No Wi-Fi Compatibility: No Works with Amazon Alexa: No Works with Android: No Works with Apple HomeKit: No Works with Insteon: No Works with iOS: No Works with SmartThings: No Works with the Google Assistant: No CA Residents: Prop 65 Warning(s): No Safety Listing: Not safety listed UNSPSC: 46171600