I understood when buying them was not strictly speaking a "massage" but more vibrant. Seeking a base cushion with massage balls, I bought anyway. In receiving it, and before offering it, I wanted to make sure of the effect and I tested. The cushion is really nice, convenient, really good heats, easily transported everywhere and very pretty. However this is indeed outright vibration. I was very disappointed at the time, he did me no effect me. Only the vibration was heard in all my couch.
I finally offered anyway, and my mother was thrilled. She immediately tried it and loved it. Short. More fear than harm.
Please understand in the end, it is simply not big vibration of a real massage. This door has a little confusion.
