Review (5/5): Good quality, much cost saving product!
I bought a Waterpik Cordless Water Flosser from Costco a couple of months ago, this Tuesday I bought this Cordless Water Flosser from Amazon, I found there is not much difference with Waterpik Cordless Water Flosser, but I only paid less than half of the price.
This is a very good Cordless Water Flosser product, it is definitely worth to buy and have a try.