Amazon calculates a product’s star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers, and factors that establish reviewer trustworthiness.
These speakers are amazing. I bought 2 so I could have a left and a right; I like that. You carry them hence the name move from room to room and they auto adjust to the acoustics in the room. And the charge lasts a long time for sure. I love them. One of my closest friends got some too once she heard and saw mine.