For users with larger arms * Cuff fits arms 12.6  - 20.5  in circumference * Includes X-Large arm cuff  4 AA batteries  and free bonus travel pouch * 3 Year Warranty * Large  high performance motor easily inflates x-large cuff for fast and accurate readings * Digital LCD display * WHO classification indicator * 90 memories * Automatic power off * Irregular heartbeat detector * Average of last 3 measurements *  Micro USB power port allows unit to be powered with any USB port  including a laptop - great for travel! (cable not included) * Unit weight: approx. 230g (not including batteries) * Unit dimensions: 5.1  L x 3.9  W x 2.5  H * Measurement range: Pressure (0 mmHg-280 mmHg)  Pulse (30-160 bpm) * Measurement accuracy: Pressure (?3 mmHg)  Pulse (?5% of readings) * Cuff measures 26.8  x 5.5  and fits arm circumferences 12.6  - 20.5  *