You can use it with almost any type of drink, such as hot chocolate, milk, tea and even coffee. The mug stirs drinks automatically as you press the special button on the handle.
It powers from two AAA batteries that you have to put in its base, and has a size of 4 3/8 x 3 3/8 inches. It can be cleaned easily using dish soap and water.
You can get one for $18.99.