Customer Service Support: If there is any problem with the product, please feel free to contact our after-sales support. We will solve the problem for you as soon as possible. ?Adjustable Upper Arm BP Cuff?Our digital adjustable BP cuff kit is equipped with a large cuff, which is 7.8-16.5 inches (20-42 cm) wide and can be adapted to people of different sizes, Free adjust to fit your upper arm and get accurate measurement readings. We provide warranty for this product, you can contact us at any time if you encounter any problems in use. ?Dual Ways To Power?Blood pressure machine supports 3AA batteries and USB-C cord charging, never worry about replacing batteries frequently. And with a portable carry bag, it is suitable to keep tracking your healthy when traveling or working. (Batteries and AC adapter is not included). ?Need To Note?: Please read the manual of the blood pressure monitor upper arm before measuring,and refer to the correct posture and steps before taking a measurement. Individual blood pressure also varies in one day, The high blood pressure monitor varies occasionally affected by many factors such as stress, measuring time, the way to wrap the cuff.It should wrap snugly around your upper arm, with just enough space to slide one fingertip underneath. ?One-Touch Button Operation?With a one-button operation,you just need to press the “START/STOP” button, it will measure your Measures systolic and diastolic blood pressure as well as pulse automatically within 1 minute. The american accent voice broadcast will follow up the whole measurement, intelligent diagnosis will remind you if your blood pressure is normal or not at the end of measurement. ?60 Sets Memory?Our blood pressure monitor can store up to 60 readings, with the date and time stamp. This is very convenient for you to keep track of your blood pressure and health, and it can show the average value of the latest 3 times measurement which makes your readings more accurate.