Hunchback Correction Device Portable Smart Sitting Posture Reminder Ergonomic Design Body Shaper Neck InstrumentWelcome to our shopFeatures:Ergonomic Design -- Using high-quality and malleable materials, the smart sitting posture corrector fits the curve of the neck. It's secure and won't fall off, so there's no burden on your shoulders.One-button open - The back center switch design, no matter adults or children can easily turn on/off.A variety of modes are optional - real-time monitoring of body posture, walking, learning, walking, travel, and entertainment can all be used, which is more convenient.Built-in smart chip - accurate record, timely reminder. The posture monitors the hunchback angle in real time, and if the hunchback bends more than 25, it will remind you of vibration correction in time.Specification:Material: ABS+SiliconeRated power: 0.8WWorking voltage: 3.7VPackage Included:1 x Portable Sitting Posture Correction InstrumentNote:1. Due to the different monitor and lighting effect, the actual color of the item may be slightly different from the color shown on the pictures.2. Please allow 1-3cm error due to manual measurement. (1 inch = 2.54 cm)Thanks for your support :)