1. Large LCD size: 55 x 44mm with digit height 18mm 2. 2x90 groups memory function 3. Average calculation for the last 3 measurement readings 4. Blood pressure classification (WHO) indicator 5. Irregular heartbeat (IHB) indicator 6. Accuracy: Pressure+/-3mmHg; Pulse+/-5% 7. Automatic inflate and deflate 8. Powered by 4 AA sized alkaline batteries or AC/DC power supply 9. Automatic power-off function