When I received my byetag, it did not work. It appears as though the QR code was never activated. Therefore, when scanned, it gave an error message - thereby rendering the product completely useless. I contacted customer service multiple times over MONTHS. I received one email asking for a photo of the tag, after that, silence. I could not get the issue resolved, could not initiate a return, could not speak to anyone. I ended up having to challenge the purchase with my credit card company, who refunded me. This is such a scam and waste of money! DON'T buy it!