Large screen, easy to read: Large LCD screen displays test result, suitable for the old people. Quick and convenient: The wristband will inflates and shrink automatically, which only needs a few minutes to get your result, helping you analyze your health index every day. Memory function: It can store 2 people's 90 sets of measurement values, convenient for calculating average value. Portable: It is lightweight and a storage box is provided for outdoor carry, portable on journey. Easy to operate: It can be used on wrist, easy to operate, which is suitable for both professional medical field and family.