Advanced technology measures 5x more data points for accuracy 14 blood pressure readings at a time for one user Informs user when their heart beats irregularly The 1-touch design allows the user to remove the monitor from the box, place the cuff onto the arm and simply press the button to start blood pressure measurement The display provides a large digital screen to see and read results easily A wide-range D-ring cuff is designed for a more comfortable measurement Fits arms 9 in. to 17 in. in circumference Includes instruction manual and quick-start guide Requires 4 AA batteries