For my particular circumstances this product is just great. My granddaughter and her husband are downstairs and we only use it in emergencies with my helpless husband. I push this button and they set it to go off the blue flasher and the police siren. They can play video games with headphones and they will see and hear it. They fly up the stairs and help in any emergency. We've had 5 in the last 3 months. I feel safe and love this product.
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