Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
I have a busy job that requires a lot of time on the mobile. The handset make my phone conversations very comfortable. I may look a bit unusual when I am out and about using my handset with my mobile but I am certainly comfortable. No more headphones. No more holding the electrified mobile beside my head to talk in it. Note I have had skin cancer removed from where the phone would usually sit.. this is why I purchased the handset.