Instant Pot Ultra electric pressure cooker is the next generation in kitchen appliances. A central dial with a simple turn and press provides added precision in program selection and adjustment New features: altitude adjustment, cooking indicator, and a steam release reset button. The Ultra button for custom programming. The new features include sterilize, cake and egg programs,. ETL Approved Replaces 10 common kitchen appliances, pressure cooker, slow cooker, rice/porridge cooker, yogurt maker, cake maker, egg cooker, saute/searing, steamer, warmer, and sterilizer. The 3-ply bottom has an aluminum core for optimal heat dispersal, but no aluminum comes into contact with your food. With no chemical coating Developed with the latest 3rd generation technology with an embedded microprocessor. The microprocessor monitors the pressure and temperature, keeps time, and adjusts heating intensity and duration UL certified with 11 safety features to provide peace of mind. New steam release reset button for safer handling. All components in contact with food are food grade 304 (18/8) Stainless Steel; Energy efficient – Saves up to 70% of energy Power supply: 120 Volt – 60 Hertz