Bellman & Symfon Visit Door Transmitter

The Visit Door Transmitter is part of the Bellman Visit smart home system, and when paired with 1 or more Visit receivers will let deaf & hard of hearing people know when guests are at the door.   Features Reliable connection to Visit receivers with up to 800 ft. range Can be set up to either 'listen" for your existing doorbell & door chime (through its built-in microphones), or hard-wired directly to your doorbell . Includes velcro for quick & easy wall mounting Multiple ports can detect doorbells or intercoms Long lasting power with up to 10 year battery life   How to Use .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }   Includes BE 1411 Visit door transmitter (2) AA Alkaline Batteries Velcro for wall mounting Screw & wall plug 2 Year Manufacturer's Warranty