Adjustable Large Cuff: AILE arm blood pressure monitor with a sleeve circumference range of 8.7”-16.5” (22cm-42cm) on the upper arm; this blood pressure cuff fits most adult arms. Strong velcro cuff with anti-dust material ensures the sleeve securesproperly around the arm,whilst being comfortable and easy to clean. AILE bp monitor helps you keep on top of your health Specific Algorithm and Chip: AILE blood pressure monitors have passed specific algorithm and chip certifications. The blood-pressure machine will provide accurate blood pressure readings - as well as your pulse rate - within 30 seconds. Measurements are easily & clearly viewedon the large digital LCD screens. This blood-pressure monitor is easy to use compared with traditional sphygmomanometers Portable Design & Simplicity: AILE blood pressure cuff monitors are powered either by USB cable (included) or 4 x 1.5v AAA batteries (not included). Elegantly designed and of a compact size, this device is portable and ideal for daily use anywhere. Dual User Mode & 99 Memory Function: AILE bp machine records readings and stores them in its memory for 2 users. The small monitor can store up to 99 readings for each user (198 total) with time stamp technology, making it easy to observe & recally historical data. This product also incorporates an irregular heartbeat detection feature. The average of the last three readings is also displayed automatically. This is far superior to a manual blood pressure kit In the Box: 1 x AILE digital blood pressure monitor, 1 x home blood pressure monitor large cuff, 1 x USB cable (Batteries & AC adapter not included), 1 x instruction manual. This blood pressure machine is a great choice for,adults, the elderly, for sportspeople or people monitoring their health closely, as well as in clinical environments,at home, in your office or just about anywhere