Review (4/5): Works better than portable WaterPIk
I bought the portable travel Waterpik first and was amazed that the thing did not even work on 240 volt they have in Europe. Plus, the water pressure was just too low to be of much use. So, I returned the thing. Then I bought this unit and took if with me for a month in Europe. It worked fine and had more pressure than the WaterPik although even more would have been good. You can take the bottom water tank off to clean or dry it and a single charge worked for more than two weeks with single per day use. It does seem like the water pressure was dropping a bit the longer I used it so I don't know what the life span of the unit will be but it worked for my purposes. Now, I have been using the big plug-in Waterpiks for decades and they have a lot more power but they are too big for travel and only use 120 volts so I could not take it with me. This unit seems to fit the bill for a travel item and it comes with a waterproof carrying case, charger and 3 tips.