Portable Size---105(L) x 115(W) x 50 (H)mm,easy to carry Good Quality&Safety---Large LCD display Screen. Dual Measurement of Speech Reading---Fast measure blood pressure and pulse rate, also the average value, high accuracy with sound when measuring VEasy to Operate---Automatic Stylish, if no operation for 1 minute, it will auto power off. Power Supply---4 x AAA Batteries(NOT INCLUDED) Specifications Memory Group: For 2 peoples Operating Temperatures: 5~40, 15% - 85% RH Storage Temperatures: -10~55, 10% - 85% RH Power Supply: USB Interface or 4 x 1.5V AAA Battery(NOT INCLUDED Battery) Measurement Range Pressure: 40-280mmHg (5.3-37.3kPa) Pulse Rate: 40-199times/min Accuracy Static Pressure: 3mmHg (0.4kPa) Pulse: Within 5% Key features Fashionable and CompactThe Electronic Blood Pressure Monitor consist of Digital Liquid Crystal Display, then you can clearly see the value of blood pressure and pulse Multi-function Display The monitor can show the blood pressure, pulse rate range also the average value, especially the Memory and heartbeat icon, interestingly let us pay attention to the health Automatic and Smart The sign of low voltage battery recommend you need to replace the battery, besides if no any operation for 1 minute, the monitor will auto power off, really smart for power saving Wide Application The monitor is with fashionable outward, compact for use, a good healthcare tool for medical field, also suitable for household, such as adult, especially the elderly Package Included: 1 x Arm Blood Pressure Monitor 1 x Arm Cuff Medium (22cm-32cm) 1 x Manual 1 x FREE Travel Bag