Features LCD display WHO Risk Category Bar Mode Button, Set Button Start/Stop button & Memory button Simple 1 touch measurement Easy to read wide angle display Compact Design Comfortable fit cuff – range 23 – 33cm (9 – 13in) Irregular Heart Beat Detection Arm Cuff with tube, Air Plug & Air Plug Jack 4 x AAA/LR03 Alkaline Batteries Clinically tests accuracy by the European Society of Hypertension Use Follow your doctor’s instructions when measuring and recording your blood pressure. If you are over the age of 30, you should have your blood pressure checked at least every five years. Always read the instructions before use.