TR-503 wireless intercom call bell system is a loud voice, easy intallation with 120 decibel system for two way talking.
Wireless intercom TR-503 can be placed on necessary place, it is wireless.
|Number of channels||16|
|Theoretical distance||2-3 kilometers|
Wireless intercom TR-503’s warranty lasts for one (1) years from the date of original purchase of this product.