Good for travel
We have the H2o countertop water flosser, so asked to review this portable version in exchange for a discount of the product.  My daughter has braces, so prefers to use the water flosser.  She is 8.5 yrs old and can easily manage this device herself.  It is a great supplement to the counter top flosser especially for travel.  The battery lasts a long time (we haven't had to recharge yet, and it's been a few weeks), and the power of the stream is strong.  Plus the tips are interchangeable with the countertop flosser.  My only downside is that the port where the charging cable gets attached to the flosser is on the front and has a tiny rubber plug that can be easily lost (the plug is not attached to the flosser).  It does come with an extra plug in case this happens.  Overall, we've been happy with both of our H2o flossers (countertop and portable).
Rating: 4 stars