They do not last
This product is really great, but they do not last at all.  I will now be looking for somme other brand of water flosser as these hold up for approx 6 months use and then they will not hold a charge.  Like an idiot, I opted to buy one for each of my homes since I live 6 months in each.  They havew a really short warranty period so guess I'm going to have to change brand.  It's unfortunate thay dont have a plug in the wall version.  Oh well.  If it weren't for that, It would be a great product.
Rating: 1 stars