This personal blender is perfect for all your single servings or smaller recipes and handy to grab and go. As part of the KitchenAid Go Cordless System, it requires the removable battery* that powers all appliances. The 473 ml BPA-free blending jar is designed to fold the contents back towards the blades to create a powerful blending vortex for breaking down ingredients. As the stainless steel asymmetric blades blend at 4 distinct angles, they deliver a smooth and delicious mixture every time. The blending jar is dishwasher safe. *Battery not included in this model but can be purchased separately.