Features: 1.This is an electric protein shaker bottle, you just need to press the button and it will mix automatically.2.It is not only a powerful blender, but also a 450ml/600ml water and beverage bottle. With a tightly closed lid to prevent spills.3.Automatically mix your Protein supplements to your liking, as well as shakes, juices, eggs and much more.4.Portable electric protein shaker; Battery powered shaker bottle (not included) to use anywhere, ideal gift for your family or friend.5.Leak prevention design, completely sealed, no leakage, can be placed in your backpack, luggage, etc.6.Easy to clean, just add a little water and detergent, spin for a few seconds, rinse and you're done. Specifications: Color: transparent Weight: 280g, 320g Rotation speed: 9000-11000rpm Optional capacity: 450ml, 600ml Material: PP/AS, 304 stainless steel Power supply: 2 AAA batteries (not included) Size: 450ml : 20x8.5x6cm(7.87x3.35x2.36in); 600ml: 23x8.5x6cm (9.06x3.35x2.36in) PackList:1*blender