POSTURE TRAINER: updated posture corrector is equipped with a smart sensor, which will remind you by vibrating when you are in bad posture. You will develop muscle memory if you wear our posture corrector for a period of time. It means that even without the trainer device you will stay straight in the future. Be more confident in your life! ADJUSTABLE SIZE:There is a adjustable buckle,which make it can be adjusted to the chest size ranging .It fits adult (men and women) and kids because its adjustable size. There is a charging cord in the box.Normally it can use 15 days(15 minutes/day) and you just charge it for about 2 hours. You can take it with you wherever you want to go. The beautiful and lightweight design make it can be worn on your clothes at work or daily life inconspicuously. We recommend it for those who have humpback, sore shoulder, uncomfortable waist caused by long sitting at the desk. Packing list: 1* Unisex Back Trainer NOTICE: 1. Due to different monitors and different photos, there may be slight color difference between the actual product and the photo. Please understand, we guarantee that the is the same as the picture. 2. The size is manually measured, there may be an error of 2-5cm, which will not affect the use. 3. Only sell main products, not other accessories. 4. After receiving the packaging, please check the packaging and products carefully. If the received item is defective or has any problems, please contact us via email to resolve the problem. We will reply as soon as possible and try our best to meet your needs. You can use it not only while sitting in front of the computer or driving, but also while exercising or gardening.

Improve your overall posture at work or in life. The beautiful and lightweight design make it can be worn on your clothes at work or daily life inconspicuously. We recommend it for those who have humpback, sore shoulder, uncomfortable waist caused by long sitting at the desk. There is a charging cord in the box.Normally it can use 15 days(15 minutes/day) and you just charge it for about 2 hours. You can take it with you wherever you want to go. ADJUSTABLE SIZE:There is a adjustable buckle,which make it can be adjusted to the chest size ranging .It fits adult (men and women) and kids because its adjustable size. You will develop muscle memory if you wear our posture corrector for a period of time. It means that even without the trainer device you will stay straight in the future. Be more confident in your life!. POSTURE TRAINER: updated posture corrector is equipped with a smart sensor, which will remind you by vibrating when you are in bad posture.