To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
This produce works just as it is advertised and powerful, awesome and works wonders. My best purchase in a while.Great for massaging my head. I use it for my shoulders as well. I love it and would recommend it to anyone in needs of a similar item.