I could not use the product because I could not place the devices. I already have several smart devices at home, all of which are equipped with apps. However, the Yuadon Smart Plug app is banned in the US, so I couldn't set it up. I could probably use IFTTT but that was just too many issues and an unsupported implementation. LSS, I sent them back for a refund (not because they didn't work) because I couldn't set them up.