XL Backlit display with color-coded interpretation. Check the last three measurements average for improved control. Irregular heartbeat detection. Shows systolic pressure diastolic pressure pulse reading and more. Two cuff sizes support more accurate readings. Supports two user profiles storing up to 40 memories for each user. Clinically proven accuracy following American Heart Association guidelines. Dimensions: 4.3" x 3.7" x 5.7". Includes: Blood pressure monitor. 2 Arm cuffs. Storage bag. 4 AA Batteries.