Selfdetect technology With multiple sizes of Vitamix containers available, it can be tough to decide which one is best suited to the task at hand. Using Bluetooth wireless connectivity, the Ascent blender calibrates blending time and performance based on the container you are using. Additionally, interlock technology means the blender won't start if the lid or container is not fastened correctly. Variable speed control Whether you're going for full obliteration or gradual waves of power, this blender gives you a world of autonomy. Choose from 10 speeds using the simple dial control, or choose Pulse for those recipes that need one last bit of refinement. Digital timer When you're following a recipe, time is of the essence. Thanks to this blender's digital timer, you can stay on track with your method to ensure your final texture is not too dense or too watery.