This receiver is an add on to the Jacob Jensen Wireless Doorbell set; an unlimited number of receivers can be purchased separately and added to your configuration. It can play five different tunes, including a low frequence tune for the hearing impaired, and has two volume settings. Receiver lights up when triggered and can run off of 6 AA batteries an adapter plug. Designed for indoor use, with the operating temperature range of 41 to 122 degrees F.
Dimensions: Chime 7" x 4.5" x 1.5"
Includes: One receiver, 6 AA batteries and mounting hardware.