This brand new digital blood pressure monitor by Dralegend is a reliable upper arm monitor that is never been used. It is powered by batteries and is FDA 510K compliant, ensuring accuracy and quality. The boxed set includes the monitor, perfect for anyone looking to track their blood pressure efficiently with a digital display for easy readings. The Omron HeartGuide product line guarantees a trusted and well-known brand in the world of healthcare and wellness. Requires AAA batteries.