Bad analog picture. The sound of the intercom is excessively piercing to the point of being deafening - clearly heard by passersby on the street. The sound of the doorbell, on the other hand - due to the many square meters of the house - is difficult to perceive from the rooms, and finally, no sound - I mean the volume - can be adjusted... although there are graphics for the volume, which of course do not correspond to reality. The melodies are very mediocre. In conclusion, if your apartment is relatively small and the doorbell is in close proximity to the living room - and you don't have excessive demands such as a digital screen - I would recommend it with reservations.