I have purchased 10 Birdies since September for Gifts +my own. I truly believe in them. Twice a month I am in an area that is very dark when I leave. I always have my birdie in my hand and feel confident walking in this area with my birdie. Prior to having My birdie, I felt uncomfortable. So I bought one for each of my granddaughters, daughter-in-law, daughter, and a friend who walks.
They are beautiful and elegant . It is hard to believe they are an alarm system.