This monitor is easy to use with automatic inflation and deflation. It operates with the push of one button providing quick digital readings of systolic & diastolic pressure and pulse rate on a large well-lit screen. It stores 60 readings with date and time, and also can show the average of past 3 readings. The cuff fits wrist circumference from 5.3” to 8.5”. Two AAA batteries are included. New and never used with complete User Guide and Quick Start Guide. $20