1.Angle sensing, intelligent vibration reminder: Our Smart Posture Corrector is equipped with advanced angle sensing technology that immediately triggers a gentle vibration when your hunchback bend exceeds 25°. This innovative feature serves as a constant reminder to maintain a correct posture throughout the day. 2.8-shaped design, ergonomic: Designed with an ergonomic 8-shaped structure, our Smart Posture Corrector perfectly contours to the natural curves of your upper back. This ensures a close fit and maximum comfort when worn. Crafted from high-elastic nylon fabric, it a sense of dom without any discomfort or restraint. 3.Scientific correction, cultivating body memory: By wearing our Smart Posture Corrector for just 2 hours a day and consistently using it for 3 weeks, you can greatly improve your hunchback posture. It helps train your body to develop muscle memory, gradually correcting your posture, and allowing you to confidently raise your head and chest for a more elegant and confident appearance. 4.Rechargeable and long standby: Say goodbye to the hassle of constantly changing batteries. Our Smart Posture Corrector comes with a USB charging feature and a large-capacity battery that provides a long-lasting battery life. With uninterrupted body shape correction, you can rely on this device for continuous posture improvement.