Used but twice. Batteries never installed. Has great alerts such as Irregular Heartbeats (A-fib). Purchased for sibling who refuses to use. Manage/track up to 200 readings for up to 2 users (100 readings each) and unlimited readings on your smartphone with Omron's Free app “Omron Wellness” that works with most iOS and Android devices (visit {url removed} for a list of compatible devices) Features exclusive TruRead technology that takes 3 consecutive readings and calculates the average Patented, preformed ComFit cuff inflates around your entire arm to help ensure accurate readings and fits arms 9 to 17 inches in circumference that is very easy to put on and put on correctly; it even tells you if the cuff is on improperly Easy to read backlit screen with extra large digits and multi colored LED indicator lights show your readings compared to internationally recognized guidelines for normal or hypertensive blood pressure ranges Omron is the #1 recommended home blood pressure monitor brand by doctors and pharmacists for clinically accurate home monitoring, and the #1 selling manufacturer of home blood pressure monitors for over 40 years Irregular heartbeat detector that should have prevented two heart attacks, but my doctor did not trust the home monitoring and was subsequently fired BP risk category indicator