After countless tries unable to sync doorbell to Homebase 2, I called and spoke with a wonderful tech support person. They discovered the Homebase 2 was defective and would not work at all. I am pleased to say they immediately owned the issue from start-to-finish offering warranty service to replace the item. My disappointment though and why I gave a 4-star rating is because initially the Homebase failed. ** In conclusion though, a day later, I learned I can sync it to my Homebase 3 unit and so the doorbell camera is currently in service!I used the 15-degree mount to include see more of left camera view.