Operating range cover over 500 feet, even reaches 1000 feet in open area. Remote transmitter button is rated weatherproof and acceptable for outdoor use
38 different chime ring tones are selectable. 3 levels of adjustable volume of indoor receivers from 60db to 120db. All-day anti-interference system prevents the interferences of neighbors wireless doorbell
No batteries required for receivers, easily plug into an electrical outlet?AC outlet of US standard?. One 12V/A23 battery included for outdoor transmitter.
Indoor receivers can work well at any places of your house: rooms at first floor, second floor and higher, living room, dining room, basement, garage, kitchen, back yard, bedroom, bathroom, etc