The Features of the X9 Blood Pressure Monitor are as follows: Arrhythmia Detection (ARR) Atrial Fibrillation Detection (AFib) Premature Contraction Detection (PC) Tachycardia Detection (TACH) Bradycardia Detection (BRAD) Automatic & Auscultatory measurement available Movement Detection Cuff Detection Hypertension Risk Indication 90 memories with date & time indication Small, Medium & Large Cuff included 6V Adaptor included Cuff Holder Design Jumbo size “XL” digit Backlight LCD Lifetime Calibration.