1.Large LCD display size: 58x68mm; 2.Double memory function suitable for 2 users, memory recall of 2x120 groups; 3.Smart and intelligent, One-button easy operation 4.Support LCD with backlight; 5.Average function: Last 3 groups average measuring value; 6.Blood pressure classification (WHO) indicator; 7.Irregular heartbeat (IHB) indicator; 8.Arrhythmia checking: Monitor arrhythmia while measuring the blood pressure; 9Automatic power-off function and power saving; 10.Support year/month/date/time setting function; 11.Accuracy :Pressure within ±3mmHg(±0.4kPa), Pulse within ±5% of reading