About this item 【Safe and reliable】: Boasting specific algorithms & chip, each individually-tested Sinocare BP Monitor will provide you with the most trustworthy readings, helping you track your health easily at home. A safe and reliable blood pressure machine to our families. 【90 Memory x 2 Users Mode】: This BP monitor can monitor 2 users together, store 90 readings with date & time stamps for each displays the average of last 3 readings, includes irregular heartbeat detection. Helps users to easily track their health, blood pressure and heart rate according to the specific time and date. 【Large LCD Display with Backlight】: The large LCD display with clear and oversized numbers, makes it easy to read your real-time blood pressure and pulse rate. With Backlight Design, you can read it clearly even in the dark. The voice function is very suitable for the elderly. You can turn the voice off and on or modify the date (year / month / day / hour / minute) with the "SET" key. 【Blood Pressure&Heartbeat Indicator】: A coded indicator for blood pressure. The irregular heartbeat symbol will show up when an irregular heartbeat is detected. When a specific error occurs in the product, the cause of the error can be determined by comparing the error symbol with the manual. 【Ergonomic Design】: Powered by 4 AA batteries(included in package) and come with adjustable larger cuff(8.66"-16.54"), the ultra compact BP monitor is ideal for both home & travel use.