Description: Intelligent Posture Corrector --- Smart Posture Corrector will automatically to remind user when your back is bent forward more than 25 degrees, help you correct bad posture habits, keep you upright and more confident. Scientific Efficient Correction --- We recommend that user wear posture corrector for 2 hours a day. 21 the period of habit formation, and posture will be significantly improved, 90 days of persistence will enter the period of habit stability. Wear Invisible & Fit All People --- Upper straightener belt is compact size which you can wear it under clothes invisibly without anyone noticing it, , work, study, outdoors, office, go shopping any other occasions. Adjustable harness fit for children and adults, men and women. Comfortable to Wear --- High-elastic nylon fabric material is comfortable to wear without pressure on your shoulder the human body curve. Shoulder straps can be adjusted to your most comfort length. Rechargeable & Long Standby --- Built-in battery and can be used for 15 days hours charging. The switch is with an indicator light, the constant red light indicates charging, and the constant blue light indicates full/normal working. Specification: Material: High elastic nylon belt Size: The size can be adjusted freely according to needs Charging: USB (with USB data cable) Package Includes: 1 Piece Posture Corrector 1 Piece USB Charging Cable Upper Back Braces Clavicle Support Adults Kids Electric Slouch Detector Back Support Correction Smart Back Brace Sensor Vibration Reminder