The CMR-500 I have found exactly the right thing. I've been looking for my electric motor driven outside blinds a wireless switch for retrofitting without great slots walls. In a flush box housed, I now have the technology I need between the wall and wallpaper. Just as it would always like architects. For me it was just the right solution for retrofitting. Together with the remote control ITZ-500, the system is complete. And with InterTechno that is good value for money. With the delivery of promten blind Scout assembling nothing stood in the way. Just awesome!