You will need to use a 2. 4Ghz WiFi which makes total sense because the signal has to get through exterior walls to the doorbell 5Ghz doesn’t travel as far or through walls as well. I originally had issues with connectivity but this was resolved when I changed my own set up a bit. The device glows a nice LED color right on the button itself and on the top. For those of you who love to change the look of things, this LED color is fully customizable via the SkyBell HD app so the kiddos in the family like to make it match the current holiday!Picture/Audio QualityThe picture and audio quality on this device far surpasses anything else I have used/tested. The camera is 1080p which compared to past generations of the SkyBell and the Ring HD, this product is so much better. The closest runner up would be the 720p Ring. The picture itself is very impressive, I have showed friends and co workers my porch from the app and they have been blown away. You can even pinch zoom while watching the video. If the WiFi signal degrades, the picture quality seems to scale in my experience this normally happens when my toddler gets hold of the router antenna, which is a quick fix haha. As far as audio quality, I have never had any issue understanding anyone at the door using this device.