Keep track of your blood pressure and share the results with your doctor. Easy-to-use slim cuff remembers 90 readings and averages the most recent 3. The screen is green for a normal reading, yellow for elevated and red to indicate hypertension. Also indicates irregular heartbeat, date and time. Can be used by 2 people. Hook and loop closure for secure fit. Plastic/Metal/Electronics/Rubber. Imported. Indicator is 1.6" x 1.4". Requires 2 AAA batteries (not included).