We have a ten-year track record of successfully protecting birds from cats. Our product has been studied in field studies, confirming how well it works. It also has been tested in backyards all over the United States and Canada for ten years. We can assure you that the product succeeds from Alaska to Florida, from Maine to Hawaii. In Canada, the product is very popular, and we also have a wide group of cats wearing it from Iceland to the UK to France and Belgium, Switzerland and more.