Does its job
It's small and cute and fits on almost any bottle, glass, thermos, or cup. I flashes when it says it will and catches my attention. I have 2 issues and 2 suggestion: It's pretty expensive for something so small and simple, it prohibits from buying more than 1; it will occasionally pop off the band if the bottle falls. Suggestions: have a locking mechanism on the device so it won't pop off so easily; have a sound/chirp +/- phone alert option too. Because once you leave the room, you can't see the light flashing anymore and forget which defeats the purpose of the thing!
Rating: 4 stars