1、Posture Correction: Correct posture scientifically. Form muscle memory, cultivate upright habits, exercise shoulder muscles, relieve shoulder, neck, and upper back pain. Wear it for long time to improve your hunchback and make you more upright, confident and beautiful. 2、Figure 8 Design: Ergonomic, angle sensing, intelligent vibration reminder, immediate vibration reminder when the hunchback is bent over 25°. 3、Anti Slip Buckle: Easy to adjust, stable and not easy to loose, high strength nylon belt, good elasticity. 4、Smart Reminder: Back Brace reminder with smart vibration, Provides smart back support, with automatic memory function, smart sensor, when the hump bends more than 25°, it reminds you to sit up or stand upright, and vibrates immediately. 5、Concealed Wear: Accords with ergonomics and more close fitting, the material is light and breathable, easy to wear without restraint, the shoulder strap can be adjusted according to the body. Item Type: Shoulder Posture Brace Material: ABS+Strength Elastic Nylon Belt Battery Specification: Built In Lithium Battery, Capacity 500MHA Adjustable strap length, and super elastic, suitable for various body shapes 1 x Correction Belt 1 x USB Line 1 x Manual