I bought the system, because I already have an ABUS wireless alarm system with which I am very satisfied. Here I had the same quality expected, but I am a little disappointed. The aim was to monitor the front door with the system. To see who is in front of it before I open. For this, the system is partially suitable. It has advantages and disadvantages. The promised functions should also be met. + -Kameraauflösung Modest. But sufficient for the purpose of a simple door monitoring. ++ Easy installation. ++ Easy to use. + MP4 file format is PC compatible. -Unfortunately No alarm when motion is detected. --Ton Bad, hardly usable. --I Can not send mails despite correct setting. App: These functions are promised but it does not. --on My ipone5 I can not find any pictures (Snapshoots) although the execution is confirmed. I have the ABUS service contacted and hope for a clarification. Otherwise, I'll return the system as not the promised features are all available.