This Plug & Play Wireless Intercom System. It is very simple to use, clear two way communication and has an impressive 100 meters within building and 500 meters in the open field without barrier transmission.
Wireless intercom system, no telephone wires needed.
Clear Voice and Secure Digital Communication. 433MHz working frequency, anti-interference signal. Built-in rechargeable battery, works with or without electricity power, standby time 30 days.
Long communication distance up to 500m(depending on the environment).
Can be placed on desk or mounted on any surface, horizontally on any flat surface on wall vertically .
A wireless intercom system can be a convenient way to communicate throughout your house, office or warehouse.