Advanced accuracy: This most precise home blood pressure monitors ever, helping ensure consistent readings. Wide-range cuff: Contoured soft cuff design wraps around the arm for a more comfortable measurement. Fits standard and large adult arm circumferences. One-touch use: Easy one-touch operation makes home blood pressure monitoring simple and accurate. Irregular heartbeat symbol: Alerts you of irregular heartbeats while your blood pressure is being measured. 14-memory storage allows you to review the last 14 readings with the touch of a button. 2 year limited warranty. Contains: 1 digital automatic blood pressure monitor, 1 wide-range cuff (fits arms 9″ to 17″, 22 cm to 42 cm in circumference), 1 illustrated instruction manual, 1 quick start guide. Operates on 4 AA batteries (not included). Proven accurate.