Easy button control and large display allow for smart operation and clear viewing experience, user friendly design can be suitable for most people, even the senior users can operate it effortlessly by themselves, no need the guidance of others. Built-in premium chip can deliver precise measurement and smart voice prompt, allows you to start taking your blood pressure at home with accuracy. Memory function can record 90 groups of measuring records to help remind the daily measurement results, practical and convenient. IHB heart rate test can detect arrhythmia when taking the blood pressure at the same time, energy saving and free you from the operation hassle. Adjustable wrist cuff band can fit wrist circumferences of 13.5 to 19.5cm(5.31"-7.67"), widely compatible and applicable to family users. USB charging.It comes with a USB charging cable and this talking blood pressure monitor has a built-in lithium battery 300mAh.you can charge it anytime anywhere by your computer or power strip Main Features: 1.Measure the wrist joint 2. Easy to operate 3. Automated measurement 4. Storage memory 99 group 5. Query the memory data in sequence 6.LCD HD display 7. The operation is automatically turned off for 1 minute without operation 8. Accuracy: blood pressure ± 3% heart rate ± 5% 9.Measuring range: blood pressure 0 ~ 280mmHg pulse 40 ~ 199 times / minute 10. voice Great Gift for Health Care It is a great gift idea for your partents,grandpa,grandma's health care