A vibrating brush. That's it! No oscillating, just a brush..
No, I would not recommend this to a friend.
Response from waterpik.comBy Waterpik, Product Support, February 8, 2021
We are sorry for the confusion. This Flossing Brush Head is for the Sonic-Fusion. The product uses sonic technology producing 30,000 brush strokes per minute. It does not use oscillating technology.
This Waterpik is great to use and easy to handle. My teeth feel so much better since starting use. I start with the brushing and then out the waterpik and am done.