1,Capable of stirring of milk powder, coffee, oatmeal, and etc. 2,Powered by two 7# batteries. 3,Rotate at high speed. I. ... , the built-in revolving shaft will rotate at high speed. Convenient and rapid. Capable of stirring of milk powder, coffee, oatmeal, and etc ... to avoid the rust batteries damaging the internal motor that causes the product malfunction. 2. Do not immerge the bottom of the cup ...