The Vitamix A2500 Ascent Series in Slate has a variable speed control dial with programable settings. The Ascent Series blender has three program settings that automatically detect the size of your container. Create your own recipe by selecting various times and speeds to achieve the perfect texture, whether it's a tasty soup or a chunky dip for a party. Foods are blended perfectly according to the volume and quantity you are wanting to combine. The Ascent series has a 10 year Vitamix warranty and is made in the Cleveland, Ohio.