Its good one
Poseidon Rechargeable Water Flosser with XL Tank
Does exactly as described.
I have owned previous models of Poseidon, but they didn’t have nearly the power of this one. It puts out a much stronger squirt to thoroughly clean your teeth. I only wish I could recharge it on the older inductive stands from my previous models, but plugging in its USB cord to recharge will prove more handy when traveling.
My third flosser. They seem to last about 3 years used 3-4 times a day. Teeth feel refreshingly clean. Put a little vasoline on the door gasket to keep it closing smoothly. The door has a tendency to snap off at the hinges otherwise.