What is a wireless video door phone? Many people are still confused about the understanding of this word. To this end, let me introduce its origin: the bell on the door functions like knocking at the door, and it can make a sound to remind the host that there are visitors. "Doorbell" In ancient China, large families would install decorative knockers or hang a huge bronze handle on the door. When the groom walks the guest to the door, he will pull it to touch the bell inside and show it to the guest; In modern times, "doorbell" is no longer the patent of the rich, and "doorbell" has already flown into the homes of ordinary people; There are all kinds of doorbell everywhere. The most common "doorbell" in modern times is electronic products: there are generally two 5th batteries. After pressing the trigger button outside the door, the doorbell inside the door will ring several times. There are also some electronic music played by ic chips; The modern "doorbell" in a high-class apartment is the most expensive of its kind. It can not only make door-to-door calls, but also let the owner of the house see the visitors who are far away from the door and downstairs on the screen through the camera. Moreover, it has developed from a black-and-white screen to a color screen, from a 4-inch screen to a 7-inch screen, or even a 65,438+00-inch screen. Now it is called the building intercom system-wireless visual door phone.
At present, there are many manufacturers of building intercom in China, and the quality is uneven. As for how to choose products suitable for yourself and trustworthy manufacturers, only through comparison can we make a breakthrough.
If you need to know more about the wireless video phone at the door, you can check all the relevant information in Baidu Search Anerfa Company!