1.Meassurement range: BP: 0-280mmHg (0-37.3kPa)        Pluse: 40-199beats/min. 2.Cuff pressure range:  0-299mmHg (0-39.86kPa). 3.Accuracy: Pressure ±3mmHg (0.4kPa)/Pluse ±5% of the reading. 4.One key operation: Just one key to finish the whole meassurement after wearing the cuff properly. 5.Intelligent pressure control: Automatically detect and provide proper pressure in the cuff. 6.Arrhythmia checking: Monitor arrhythnia while meassuring the blood pressure. 7.Memory: 2*120 groups memory (Double user). 8.Average function:last 3 groups average  meassuring value. 9.Battery indicating. 10.Time & Date display. 11. Voice broadcast, Background music,  and WHO function in display. 12.Material: ABS+LCD digital display. 13.Power source: Internal-DC 6V (4*AAA)    External-DC 6V. 14.Size:Device:4.65" (W) x 4.33" (L) x 2.05"(H)   LCD display:3.74*2.52"  Cuff perimeter:8.7"-15.8". 15.Weight: Device:290g + Cuff 104.2g. 16.Certificate: CE, RoHS. 17.Accessories: Cuff + Manual 18.Color box: 133*95*160mm            Carton size: 495*340*420mm 19. Packing:1 pcs/box, 30 boxes/carton