Do not buy Yi Kami products
I originally bought 11 inside cameras and three outside cameras on the basis that I didn't need a subscription and could fit an SD card for recording as the subscription for all these cameras would have been expensive. The cameras worked ok although with limited functionality. After about a year Yi/Kami started to introduce ads and pop ups which got progressively worse until the app and cameras were useless, unless of course you took out a subscription- which was not the deal. I was so enraged I have taken all the cameras out and thrown them away and changed them all to TP Link at considerable cost. These work fine and as advertised. And a note to Yi /Kami. You think you are being clever but you are actually very stupid. As well as changing the cameras I have standardised on TP Link infrastructure for all of my home controls. You have lost me as a customer for ever. I tell everyone of my experience. From Trust Pilot reviews it look like everyone has had the same experience. So, in my opinion never, ever buy Yi/Kami.