Update 10/01/19 - This product still has the minimum usage detailed below. They have not been updated to include any of the advertised features. This device has been working with my Ring Alarm system since today 1/12/19. However, it only works as an additional sound device when the alarm goes off. There's no volume control, no way to change the type of alarm, and no way to use it to alert you to a doorbell, open windows, etc. The sound of the alarm is not loud at all, at least not only volume levels available with RING. This will certainly let someone know the alarm has gone off, but it won't intimidate them into thinking the neighbors will hear. If they were $10 I would buy a pack and give them around the house. But at that price it wouldn't be worth the money. I'm keeping the alarm going in the hope that Ring will update its app to include more advertised options and that the volume can be turned up. I will update the review when the situation improves. But for now, at this price point and with the performance I've experienced, I can't give it more than 2 stars.
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