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 saw this product before when it was still in Kickstarter. Tried it for a few months now and it works perfectly specially if youre working in your desk for hours. Battery can last for more than 2h depending on your heat setting. You can always place it on the charging dock to last longer.
This product is really poorly designed and durability is a big question mark with in two months of usage this has gone kaput. Not worth paying the top dollars, avoid buying this. I can’t even return it now