The 7 Series provides these 7 benefits: ComFit Cuff: Omron's patented pre-formed arm cuff expands to fit both regular and large sized arms to ensure more comfortable, accurate readings. Cuff wrap guide indicator confirms the cuff has been wrapped correctly on your arm. Advanced averaging: Exclusive technology automatically displays the average of up to the last 3 readings taken within the last 10 minutes. Irregular heartbeat detector: This monitor can detect and alert you to irregular heartbeats while your blood pressure is being measured. If an irregular heartbeat is detected, an indicator icon will appear alerting you so you can consult with your medical professional. BP level indicator shows how your reading compares to the American Heart Association's guideline for normal home blood pressure levels. AC adapter plugs into your wall and ensures your monitor is ready to use whenever you are. 60 memory storage with date and time stamp allows you to review the last 60 readings with a touch of a button. Contains: 1 digital automatic blood pressure monitor, 1 ComFit cuff (fits arms 9-17 inches in circumference), 1 illustrated English/Spanish instruction manual, 1 Quick Start guide, 1 AC adapter, 1 storage case. 5 year limited warranty.