Welcome to our store! 1. Smart Induction: Our newly upgraded intelligent posture trainer offers improved posture, invisible wear, hunchback monitoring, and more. Featuring a built-in intelligent chip for precise positioning and hunchback angle monitoring, it automatically detects and vibrates to remind you when the hunchback exceeds 25 degrees. Real-time posture monitoring and scientific correction with automatic memory function. 2. Correct Posture: Our intelligent correction strap can fundamentally solve posture problems, train back muscles, cultivate the habit of straightening up, and develop muscle memory. It also features spinal correction, stretching and chest expansion, hunchback improvement, rickets prevention, and vision protection. 3. High-Quality Material: Made of soft and comfortable food-grade silicone material, ergonomically designed to fit the human body's curve, it is not easily deformed and is comfortable to wear. Built-in 200 mAh battery, powered by USB, can last for about 7 days when fully charged (using 4 hours per day). 4. Suitable Occasions: The lightweight and breathable correction strap can be worn invisibly and can be used by adults and children. It is light and comfortable, suitable for various occasions, such as work, study, walking, etc. 5. Package List: You will receive a correction strap, 1 USB cable, and a user manual, these accessories are packed in a simple color box, which is the perfect gift for yourself, family, and friends. Product Name: Silicone Invisible Posture Corrector (Black) Material: Food-grade silicone collar, ABS Size (cm): 18.5*14.5*2CM Weight (kg): Net weight: 90g, gross weight: 145g Package size (cm): 18*14*3CM Rated input: 5V/1A Working time: About 1 week of battery life (using 4 hours per day) Rated power: 2W Battery capacity: 200mAh/3.7V 1*Posture Corrector 1*Instruction 1*USB charging cable Customers are our top priority. If you find any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best customer service.