USB Back Posture Corrector Vibration Reminder Intelligent Humpback Correction Trainer Professional Bone Care for Walking ReadingFeature:1. Built-in High-precision Chip: Accurately record posture; monitor body tilt angle changes in real time; and vibrate to remind.2. Function: Help correct the wrong posture of the back and shoulders; improve hunchback; correct posture; protect eyesight; and reshape beautiful curves.3. Material: The smart aligner is made of food-grade silicone material; which is light and durable; soft and skin-friendly; not easy to deform; fits the curve of the human body; and is comfortable to wear.4. Smart Sensor: Intelligent wrong posture perception; real-time posture monitoring; scientific and effective help you correct bad postures such as hunchback5. Applicable: Applicable to various occasions such as work; study; walking; reading; etc.; basically helping you solve posture problems.