Effective, but broke after one use
Really want to taste this highly!! Product seemed very effective and was comfortable to use. However, after rinsing off (did not emerse in water by any means) after the first use the product was no longer in working order. I took the product apart and dried it overnight but after reinstalling the batteries the next day, the product remained damaged and not in working order. Great whitening effect after one use, but also sadly broke after rinsing off.
Rating: 2 stars