This SmartHeart Automatic Digital Blood Pressure Wrist Monitor has fully automatic inflation and deflation which provides clinically accurate readings. It has intelligent inflation which untilizes results history during measurement to determine inflation level allowing for a faster measurement and more comfortable reading. The 2-person memory bank holds 120 readings 60 per user and the memory recall has a date/time stamp. This unit provides systolic diastolic and pulse results and an average of the last 3 readings. 1) Hypertension Indicator & Irregular Heartbeat Detection 2) Automatic Shut-off 3) Cuff fits wrist size: 5.5" - 7.6" (14-19.5 cm) 4) Not made with natural rubber latex 5) 2 AAA batteries and storage case included.