Digital blood pressure monitor with new technology and a large 4.4cm display showing: systolic/diastolic pressure, heartbeats, date and time, notification for irregular heartbeats. Product features: Accurate blood pressure results Memory storage of 99 measurements Operates with 2 batteries of 1.5V (AAA) – (not included) Includes storage case Blood pressure: 20mmHg~280mmHg Pulses: 40~200 beats/minute Pulse accuracy: +/-3% Operating conditions: temperature 5 ~ 40C humidity 10% ~ 90% RH Pressure range: 0-37.3kpa(0-280mmhg) Voice notification (English) ON/OFF switch