[Simple to Read with Backlit Display]-Digital BP machine has a screen display with clear, supersized number values appear during measurements for convenient and easy reading, allows the visually impaired to feel comfortable using the device. The measuring , date and time will be written on the screen with clear numbers. So this is an Perfect choice for the elderly with poor eyesight. Reading blood pressure is no a chore. [Advanced Accuracy Measurement]-Upper arm equips with advanced measurement techniques gives you not just fast reading more results. Plus, this is effective enough to track , help you know the and alert you to any issues as early as possible, which makes it convenient to track your at home day. [Super Easy Operation]- Are you worried the upper arm is too complicated for the elderly? not Super convenient one-touch operation and easy-to-read display allow all the elderly to use BP machine monitor clearly independently without any assistance. Fully automatic compression and decompression. Just simply wear the cuff, pressing the switch button, and you will the answer within . Super easy use. Perfect gift for your . [Comfortable Wide-Range Cuff]- This comes with an adjustable & wide-range cuff which fits adult arms 8.7 - 12.6inch (22cm-32cm). Strong Nylon Sticker around the cuff it around the arm and high anti-dust material as the surface is easy to clean. The cuff integrated with -and-loop fasteners, it is ergonomically designed to comfortable experience during the measurement process.It is recommended use. colour: black + white Material: Plastic Package Contents: 1 x Automatic Upper Arm Digital Rate Monitoring Machine (not included 4 x AAA Battery) Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.