[Expired]Waterpik Cordless Advanced Water Flosser

: Be cautious when choosing the wireless ON model. The charging port has a design flaw—it stops charging after three months of use. I've replaced it twice through the official website, but the issue persists. 慎选无线ON款，充电口设计有缺陷，用三个月就无法充电，官网换了两次了仍然有这个问题

: For beginners, is it better to choose a home model or a portable one? 新手的话先选家用的还是便携的比较好啊

: I have a big one at home and keep a portable one at the office. Seriously, I highly recommend it—everyone really needs one! 家里一个大的，公司备个便携式，按头安利真的需要。

: The portable one is super convenient to use. 便携式用起来很方便

: Seems good. 好像不错

: What's the difference between this and the two-piece set from Costco that's $60 after discount? That one also comes with a home version. 这个和Costco打完折60的两件套有啥区别啊？那个还多个家用的

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