Product Description-- Intelligent digital LCD display, help you easy to read the measurements, date and time clearly.-- Able to read systolic pressure, diastolic pressure and pulse rate, monitor of irregular heartbeat and blood pressure classification simultaneously.-- 2 x 99 sets memory: Memory function, Double Mode, totally can store 198 readings automatically. It can storage historical measurements, help you record and monitor blood pressure changes.-- Intelligent blood pressure monitor: One-key operation, intelligent measuring and reading. show the measured results with a high precision value, short the measure time effectively than previous sphygmomano meter. One person can operate it alone.-- Small size and Innovative design.-- Easy to operate for adults, young people and old people.-- It's portable, you can use it at anytime and anywhere.Specifications:Application: ArmType: Upper Arm Blood Pressure MonitorSize: 11.6 x 9.8 x 6cmCuff Size: 22 - 32cmMaterial: PlasticWrist Circumference: 13.5 - 19.5 cmMeasurement Range:Pressure: 0 - 280 mmHgPulse Rate: 40 - 199 beat / minPressure: within 3 mmHgPower supply: 4 x AAA batteries (not included) / USB PoweredPackage Includes: 1 x Upper Arm Blood Pressure Monitor