The Reizen Wrist Talking Blood Pressure Monitor fits comfortably on your wrist with an adjustable velcro wrist cuff. English speaking monitor measures blood pressure and pulse rate. Features on/off button, set button, and memory button. LCD display shows the day, month, and year, systolic and the diastolic display area, blood pressure warning, icons for irregular heartbeat detection, unit indicator, user, function and heart rate display area, memory, pulse, and bell. On/off speaker option. Requires 2 AAA batteries (included). Has a flashing battery symbol when batteries run low. Automatic shut-off. Sits in a self-contained case for storage and portability. Instruction manual included. This wrist monitor measures 2.75" x 2.80". Velcro wrist cuff measures 11.50" in length.