It powers on and off. To my knowledge everything is in working order, as I do not have the ability to test it further. The sale of this item may be subject to regulation by the U. Food and Drug Administration and state and local regulatory agencies. Regardless of the origin of the equipment, documentation provided or identification appearing upon the equipment, the equipment described and offered here is in no way certified for, recommended for, or offered for any specific use.The item "Vivid 7 pro ultrasound" is in sale since Friday, July 17, 2020. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical & Lab Equipment, Devices\Ultrasound Machines". The seller is "secondlifemedical" and is located in West Columbia, South Carolina. This item can be shipped to United States.