1. No. 1 Doctor and Pharmacist Recommended Brand 2. Easy one touch operation allows home blood pressure monitoring that is both simple and accurate 3. Detects irregular heartbeat and alerts you with a special indicator icon so you can consult with your physician 4. 14 Memory storage allows you to view the last 14 readings with a touch of a button 5. Includes durable standard D-ring cuff that fits arms 9 to 13 in circumference; compatible with large D-ring cuff 13 to 17 (H-003D)