INFLATION TECH: will measure blood pressure while the cuff is inflating for faster and more comfortable blood-pressure readings, standard adult universal cuff (8.7 - 16.5 in) for at-home use ACCURATE: This blood pressure machine has a cuff position indicator that appears when the cuff is in the right position for an accurate measurement, with German-engineered electronic smart chips. ONE-TOUCH OPERATION: Simply press the large start button to select the user and begin measuring. The device will automatically shut off after one minute. It is an easy-to-use automated BPM reader. XL DISPLAY: The extra-large backlit display shows your results in large, clear font; gauge your results with the color-coded WHO risk index on the side of the display; track your BP with ease. ARRHYTHMIA DETECTION: The irregular heart rate icon will show if an abnormal pulse is detected, and wireless Bluetooth sync to your smartphone is available via the free HealthManager Pro app.