Advanced accuracy: Our most precise home blood pressure monitor ever, to help ensure consistent, precise readings. BP level bar: Shows how your readings compares to the internationally recognized guidelines for normal home blood pressure levels. Wide-range cuff: Contoured cuff design wraps the arm for a more comfortable measurement. Fits standard and large adult arm circumferences from 9 inches to 17 inches (22 cm - 42 cm). Two user mode allows two users to track their readings. Advanced averaging: Exclusive technology automatically displays the average of up to the last 3 readings taken within the last 10 minutes. Irregular heartbeat detector: Detects and alerts you of irregular heartbeats while your blood pressure is being measured. 100 memory storage: 50 memory storage for each person (100 total) with date and time stamp allows you to review the last 50 readings with a touch of a button. Easy to use: Reduces common user measurement errors. The most recommended brand by doctors and pharmacists. Due to continual product improvements, images on packaging may differ slightly from actual product. Contains: 1 digital automatic blood pressure monitor, 1 wide-range cuff, 1 illustrated English/Spanish instruction manual, 1 quick start guide, 4 AA batteries.