2-Way Audio Video Doorbell Wired Audio Door Phone Intercom System For Apartment

Plug into 220V AC power. or insert 4 cells of R6P SIZE AA1.5V (alkaline) into the cabinet of either one of the talkback pair.
• When you want to have a talk with the other, press down the push button and bell of his or her set will ring no matter whether you take up you handset or not .
• While talking, please speak into the microphone.

• When the talk is over, put back the handset, see it that the pilot light is off, or else the talkback set is still in working condition and continue to consume electric power.
• Our talkbacks are convenient to connect by means of twin conductor in common use, while connecting please pay attention to the color of the two different conductors.
• The effective talkback distance is 3 kilometers, with wire resistance less than 60 ohms.
• The ring sounds level can be selected.