The Honeywell Decor Series wireless door chimes offer the longest operating range in the industry of over 450 Ft. Choose from 6 unique chime tunes. You can also connect up to 6 Honeywell accessories including wireless push buttons, motion detectors, and window / door contacts for added peace of mind and convenience around your property. Your complete package includes the chime and 1 push button with battery. All Honeywell decor Series wireless door chimes automatically change frequencies to avoid interference with other wireless devices.