If everything works correctly, you're in luck

I bought this model there is a year to my mother and she still works fine (image and correct).
I decided to buy one this year to monitor my home.
I exchanged 2 times the camera.
The first does not even work in wireframe (Not recognized by the Livebox, I tried on 3 different livebox)
To verify that it is recognized in wireframe, you go to the configuration of the Livebox, the camera appears in the connected equipment (ipcam-xxxxxx).
The second had no sound at all.
For the third (which I kept), the sound is inaudible and saturated (crunches, breath, various sounds ....).
I still kept it for the alarm function works well.
My next camera may no longer be a HEDEN.

The 10/25/2013: After a little over a year, 5 infrared diodes 10 died.