The door bell developed battery problems. Battery runs down in cold weather and you have to take the unit in and recharge it! In cold weather the battery wouldn't even last a week --what a waste of time! You have to constantly remove the battery and charge it outside the doorbell and of course the door bell goes off line during this time. Then you have to reset it. I spent more time trying to get this product to work than it was worth! Was also billed for the service plan thru automatic billing and even though I called as soon as I saw this on my credit card they would not give me a full refund.
This is a purchase I definitively regret!