It was installed easily and works as it should. The wiring is easy even for someone without special technical knowledge. What struck me as odd is that each phone has a cable for the socket. It works by plugging one of the two phones into the socket. The red color on the bells is a bit "strange" to the eye.

Very good purchase, good price, very easy connection for 2 apartments that I did and as someone else said, it works even with power only from one handset because both are connected, clear sound, everything is good

This particular door phone set is value for money.
It looks quite high quality and is very easy to install.
It comes with a simple & explanatory manual (in English).
It is extremely practical that it has built-in power supplies in the handsets.
It can work normally even if one handset is not plugged in (it gets power from the other handset).
We also ordered a second one for spare!!!

As mentioned, the button panel has red lighting which I changed. It connected effortlessly with the wiring included in the package (very simple if you know basic electrical work). It has good sound and voice. For me, since the phones were under the electrical panel, the power supply was easily done directly from there.

The power supply integrated into the internal phone devices makes a little noise. Otherwise, everything else is good.

This is the second one of the same brand that I buy and install. The first one has 1 button outside in the rain and sun, for 4 years and works normally. The second one with 2 buttons at the entrance of a building with 2 apartments, completely satisfied. The transformer is inside the base of the handset, so you can take 230V from the nearest junction box if you don't want to connect it to a socket with the classic plug it has. The wiring is simple for someone who has basic experience and understands diagrams, otherwise you bring an electrician.

It can operate from 1 single intercom or up to 2.
It is very easy to connect with 2 wires for basic functionality plus 2 between internal devices for door opening. There is the unusual peculiarity of power supply from the intercoms themselves with plugs that directly connect to 220V, as well as the red color in the light of the external button.
Flawless operation while being very affordable.

I had bought it for 16 euros, now I see it for 33, they do whatever they want with the prices.... It works perfectly now for a year, there are 4-5 cables, easy installation, I have installed it on both floors, it opens the door normally, the only negative thing is its red cover, it looks like we are a tolerance house

I have had it for about a decade and it still works perfectly. The only negative thing it has is the terrible color of the light on the bell, everything else is fine, how they came up with this red light is beyond me.

Very good for its price, I would say it's a steal! Works perfectly, good sound, easy connection. I won't give it a 5 because you have to pass a 220v line through each headphone, but we can't have it all. Get it without fear.

I was very hesitant to order it because it has both good and bad reviews and specifically a lady writes that she called two electricians and they couldn't install it due to lack of a plan.

Nevertheless, I ordered it and even though I am not a professional electrician or electronics expert or anything similar, I found the plan, installed it myself, and it works perfectly!

Check out the photo I uploaded, the plan is located on the back of a phone.

Really disappointing.... I bought them for a two-story house, but unfortunately, we couldn't install them because both electricians we called told us that an electrical plan is needed, which was not included. Money wasted

Very good!!! We are completely satisfied with the value for money but also with the quality!
+ beautiful, good quality, good sound, easy installation
- the only negative might be the color in the light of the names

Excellent purchase. Good product. The external unit withstood very bad weather. It swam in the rain and works perfectly.