DO NOT BUY THE DOORBELL!! I have gotten error code 09 for 18 months and have worked with tech support several times and still not working. Everything worked great when I first bought doorbell, but I now believe Wyze has done this intentionally to force you into subscription. Reddit and forums have been loaded with complaints about this error for over a year and still no fix. My wyze cams work great, but doorbell SUCKS because of this error. It's useless. Save your $ and buy a different doorbell.