Omron blood pressure monitors are the #1 recommended brand by doctors and pharmacists for clinically-accurate home blood pressure monitoring, and the #1 selling manufacturer of blood pressure monitors for over 40 yearsTwo users can store and review last 50 readings each (total 100 reading memory with date and time stamps)Automatically displays the average of your last 3 readings taken within 10 minutesCompares your readings with normal home blood pressure levels while also monitoring for irregular heartbeats. The monitor will not inflate above 299 mmHgPackage includes: one blood pressure monitor, one wide-range cuff (fits arms 9 to 17 inches in circumference), quick start guide, instruction manual and 4 AA batteries. For customer support please call 866-216-1333