The Omron Automatic Digital Blood Pressure Monitor includes an Adult Cuff and is simple, silent and easy to use with it's 1-touch automatic operation. Easily read the extra large digital display showing systolic & diastolic blood pressure, pulse, date and time. Includes advanced diagnostics like detection of irregular heartbeat, 30 memory storage and advanced averaging. The durable contoured arm cuff fits arms from 9"-13" in circumference. Requires 4 AA batteries.