2 users, 99 memories each. Extra-large, easy to read LCD. Hypertension risk indicator. Detects irregular heartbeats and gives a warning signal with your reading. Irregular heartbeats may cause or indicate cardiovascular disease. Comfortable wrist cuff fits 5.3 inches - 7.7 inches. Latex free product. Includes 2 AAA batteries. Proven medical grade accuracy. 5 year warranty. Why monitor at home? Medical experts agree that monitoring your blood pressure at home can be helpful in preventing and controlling high blood pressure. By monitoring your blood pressure at home with the Sunmark deluxe automatic blood pressure monitor, you can share accurate and reliable results with your doctor. Package contents: digital blood pressure monitor, English/Spanish instruction booklet, 2 AAA batteries, storage case.