“We were happy with this item at first, but after only 4 months the item quit charging. We tried multiple ways and different ports. We were careful and did not submerge it in water but it will no longer work. Don’t waste your money.”
“It's a hoot to show this to friends. But it also has practical uses too, like mixing collagen powder in my drink. The stirring device is a magnet (so there's no hole in the bottom of the liner with a physical connection to the motor) so be aware that it may attach to a spoon or metal utensil you stick in the cup - we found that out.”
“This works well. There is a small metallic pellet in the bottom, and a device in the base causes the pellet to spin when you turn on the button. The pellet is not attached. It is held in place magnetically.”