I was genuinely excited about this product and purchased it as soon as it was released. The hardware quality and idea behind it are outstanding—exactly what I've been looking for.
Unfortunately, despite numerous attempts (including a fresh try last night), I have been unable to get the device to activate successfully on macOS 26.1 (build 23B85). I have carefully followed the official setup instructions every single time, restarted in various orders, tried different phones and airtags and scoured forums and Reddit for workarounds—nothing works. The device is simply not recognized / fails at the activation stage every time.
This issue has now persisted with no updated or acknowledgment from the manufacturer that I can find.
Until a proper macOS 26-compatible driver or activation fix is released, the product is effectively unusable for anyone on the latest macOS version. I'm happy to revise this review to 5 stars the moment it works, but right now I cannot recommend it to fellow Mac users.