Good product overall. I thought I would leave some tips based on some installation problems I had. - This doorbell works on 2.4ghz wi-fi only. I had to contact Comcast Tech Support for them to enable 2.4 ghz on my 5 ghz router. Took about 20 minutes for this. - I live in 3 story condo. Doorbell is by front door on 1st floor. Wi-fi router is on 2nd floor near the same side of the condo as the front door. I could not get it connected initially. I had to get a USB cord and power bank, plug it into the doorbell to power it up, and then initialize it while sitting next to the router. After it connected to the network, I took it back downstairs (attached to the power bank), and then attached it to the doorbell wires. - Then, it would not stay connected to the network. Luckily, I had a wi-fi extender on my 3rd floor, which I moved to the 1st floor by the front door. Once I connected the doorbell to the extender network, then everything worked fine.I almost returned it based on the set-up problems, but I kept plugging away and now I am happy with the product. Just thought I would offer some tips for others going through set-up issues.