Comfortable to wear: The high elasticity nylon fabric material is comfortable to wear without pressure on the shoulder and adapts to the curve of the human body. Shoulder straps can be adjusted to your most comfortable length. Efficient scientific correction: We recommend that the user wear posture corrector for 2 hours a day. 21 days is the period of habit formation, and posture will be significantly improved, 90 days of persistence will enter the period of habit stability. Smart Posture Corrector: The smart posture corrector will automatically vibrate the alarm to remind the user when your back is bent forward more than 25 degrees, help you correct bad posture habits, stay upright and more confident. Long Life Rechargeable Battery: Integrated large capacity lithium battery and can be used for 15 days after 2 hours charging. The switch has an indicator light, the constant red light indicates the load, and the constant blue light indicates full/normal operation. For all people: the top straightening belt is compact in size that can be worn under clothes invisibly without anyone noticing, it can be worn at home, work, study, outdoors, office, shopping on any other occasion. Adjustable harness for children and adults, men and women.