EASY TO USE: The simple push button operation ensures easy and accurate readings each time. Includes 2 AAA batteries. DATA ANALYSIS: The device records date and time of each reading for more accurate diagnosis and for analysis results over a span of time. MORE THAN BLOOD PRESSURE: In addition to measuring blood pressure, this model includes a Hypertension indicator, Irregular heartbeat detection, Memory for 2 users with 90 sets of memory each and WHO blood pressure classification indication. LARGE LCD DISPLAY: The LCD screen is back lit and displays blood pressure measurements in large, clear, easy-to-ready digits.