The World's Quietest Blender If you are looking for the best quiet blender, the Professional 800 boasts the most advanced blending technology ever seen.  *NOT FOR COMMERCIAL USE - If used commercially, the warranty will be voided. Features include: Exclusive sound enclosure—a truly silent blender Ultra powerful 1800 watt motor All-new matte black jar base Illuminated, capacitive touch interface Preprogrammed cycles: Batters, Mixed Drinks, Smoothie, Frozen Treats, Whole Juice, and Hot Soup 11-speed manual touch slider + Pulse Illuminated display provides feedback, information, and time remaining 10 year warranty Stealth Technology™ The Professional 800 is the quietest blender that operates at a sound level that won’t interrupt. Housed in a sleek, sealed sound enclosure, it features the most advanced proprietary sound dampening and airflow innovations anywhere—proving that industrial-strength power doesn’t require industrial-strength noise. 11-Speed Touch Slider + Pulse For the ultimate precision speed control, the Professional 800 features an 11-speed capacitive touch slider. Users can blend to the perfect consistency simply by sliding a finger up and down the control pa