AdjustableABS main body + elastic nylon shoulder strap, size can be adjusted according to needs, general for adults and children. . Long-lasting storageUBS universal interface charging, 500mA large-capacity battery, charging for 2 hours can be used for 15 days. . Easy to operateSimple to wear, the switch position is set in the center of the back, When the switch on the back is touched by hand, both adults and children can easily open and use it. . Intelligent vibrationThe posture corrector has an automatic sensing function, and will vibrate to remind you when there is a bad posture, which is convenient for developing good posture habits. . In order for the posture corrector to emit the correct vibration signal, the USB port must be placed upward when the orthosis is worn. In addition, if you feel that theposture corrector is too sensitive at the beginning of use, you can relax the tightness of the shoulder strap to reduce the vibration frequency. .