[Ease of Use]This adopts one-button operation on the wrist, which is very easy to use. Just press the button to start measuring blood pressure and heart rate. It is equipped with a large full-screen LED display, the display results are clear and easy to read, and it is very convenient to use. [180 Dual User Storage Slots] The home wrist supports two users. Each user can store up to 90 sets of measurement data. The stored data is accompanied by date and time, making it easy for users to view and compare historical data at any time. [Clear voice broadcast and easy-to-read LCD display]Your systolic blood pressure, diastolic blood pressure, pulse rate, etc. the wrist is the perfect your parents. (Please make sure the main power switch is turned on before use.) [COMFORTABLE & EASY TO ADJUST]The blood pressure cuff fits wrist circumferences from 5.4 inches to 7.7 inches, and the pre-shaped cuff ensures you can easily wear it on your own.<br><br>color: Black Material: metal + plastic<br><br>Package Contents: 1 x wrist 1 x Charging cable<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.