MEDICAL CLASS ACCURACY: The German engineered digital bp measurement device BM31, measures and stores systolic + diastolic blood pressure and heart rate with clinical precision. ADJUSTABLE SOFT CUFF & EASY TO USE: The extra large adjustable cuff is easily wearable on small & large upper arms. Once your arm is positioned correctly, measuring your bp is just one touch of a button away MULTIPLE USERS: The monitor stores up to 60 measurements for up to 2 users So, it is easy to track and monitor your whole familys results perfect for professional use to observe multiple people! EXTRA FEATURES: It is equipped with risk indicator, irregular heartbeat detection, and auto shut-off, making it easy and efficient to use - perfect blood pressure monitor for home use! ACCESSORIES & SUPPORT INCLUDED: The kit includes batteries, a storage case, and a cuff (for upper arms 8.7 - 16.5). Any questions? Our friendly Florida based team is always happy to help!