PURPOSE: This new blood pressure monitor uses the oscillometric method of blood pressure measurement. This means this monitor detects your blood movement through your brachial artery and converts the movements into a digital reading. An oscillometric monitor does not need a stethoscope so this monitor is simple to use. EASY TO USE: The Omron blood pressure monitor uses oscillometric method which means that this monitor detects your blood movement through your brachial artery and converts the movements into a digital reading and no need of stethoscope which makes this monitor so easy to use. DUAL USER MODE: Now you can measure and monitor your blood pressure in the same time with another user, separately with 100 reading storage memory for one person. MOBILE FRIENDLY: Unlimited readings by smartphone with Omron's free app, available at App store or Google Play. CLINICALLY PROVEN AND ACCURATE: Our blood pressure monitor are FDA approved and recommended by most doctors and pharmacist, so the high quality is guaranteed.