Designed to deliver the perfect taste. The K400 variable speed blender features a 3-part blending system that easily blends even the toughest ingredients, from kale to almonds and more, with a powerful vortex created by the ribbed jar design, a unique asymmetric blade that blends at four distinct angles, and Intelli-Speed® Motor Control, which senses contents and maintains the optimal speed to power through all ingredients. Control the taste and texture with the 5-speed variable speed dial, or use the 3 Preset Recipe Programs: Ice Crush, Icy Drinks, and Smoothie. The Soft Start® Feature starts the motor at a slower speed to pull food into the blade then quickly increases to the selected speed setting to avoid splatter. The included tamper helps push ingredients into the blending vortex so everything is blended evenly.