Professional BP Monitor: Our blood pressure monitor is equipped with accurate and stable algorithms, high-tech chip and millions of sets of research data, giving you more accurate measurement reading. Passing the FCC, CE and ROHS certified, the digital blood pressure monitor ensures a no-worry shopping. 2 User Modes: This upper arm blood pressure monitor supports 2 users to have their own independent measurement records with specific time and date, each user can record up to 99 measurements. Automatically averages the latest 3 reading values to help users easily track their health. Displayed measurements include: systolic pressure, diastolic pressure, pulse rate, date, time and user ID. Ajustable Cuff & Easy to Use: Adjustable Cuff and ergonomic design fit upper arm circumference 22-32cm (8.66 -12.6 inches). The cuff of blood pressure machine will automatically compress when start, so please keep a finger-wide distance to avoid numbness of the arm caused by too much pressure. This BP monitor is fully automatic, get the readings with one touch of the button. Large Font, Large Screen & Voice Broadcast Function: Featuring a large screen and large font, this bp monitor allow people to get their physical condition easily. Special voice broadcast function makes data reading much easier.