Large LCD Display with Three Backlights The wrist blood pressure monitor features a large screen with large subtitles that are very clear and user-friendly, especially for seniors. The three backlights (green/yellow/red) make it highly readable even in the dark, allowing parents to easily check their blood pressure levels via the monochrome light display. Rechargeable Digital BP Cuff Equipped with a high-capacity lithium battery and an included USB cable, simply connect the digital blood pressure monitor to any USB power source like your power bank or computer. A full charge takes 40 minutes, eliminating the need to buy extra batteries. It's incredibly convenient and cost-effective. 198 Group Memory Mode & 2 Users Compatible Two users can conveniently switch between modes to record measurements separately, with 99 memory storage slots for each. After each measurement, the digital upper arm blood pressure monitor will store the result along with the time and date. Accurate & Reliable Wrist Blood Pressure Monitor This BP machine is clinically tested and recommended by doctors for its reliability and accuracy. Its durable and long-lasting design makes it the perfect healthcare device for your family. Easy to Use Automatic BP Machine Simply press the ON/OFF button to start the measurement. You can also set the user, year, date, and hour according to the user manual for this automatic blood pressure cuff. No other complicated settings are required.