1.Intelligent pressurization;2.double 90 groups of memory storage3.One key operation4.Arrhythmia detection Response Time:About 60 secondsMeasurement RangePressure Range:0 to 280 mmHg;Pulse Range:40 to 199 beats/minute;Accuracy Pressure : 3mmHg ( 0.4KPa );Pulse: 5%;Screen size: 6*4.5cm;Cuff size:22cm-32cmBattery: 4*AAA batteries or Type-CEasy-to-Read Display Provides a large LCD digital screen to see and read your results easily. Advanced hypertensionindicator color codes the Systolic and Diastolic readings in green (normal), orange (prehypertension) and red (hypertension)Design for 2 Users Use. Stores up to 90 records for up to 2 users. Evaluate your blood pressure over a period of time. Monitor your blood pressure at home easliy. Measure pulse, irregular heartbeat, systolic pressure, diastolic pressure and fault indicator.One-Touch Design & Talking Feature. Allows you to remove your monitor from the box, place the cuff onto your arm, and simply press the button to start your blood pressure measurement;Talking feature with voice outputAdjustable & durable arm cuff Size adjustable large upper arm cuff can fit upper arm circumference of 22-42 cm / 8.7-16.5 inches with comfort,soft nylon fishtail and velcro design, easy to adjust to fit your upper arm and get precise measurement readings.Two Power Supplies,Type C cable & 4x AAA batteries are included. Has a unique desktop design for practical home, office or clinical use that makes it convenient to utilize and store