Feature: 1. Intelligent Automatic Sensing: Smart posture reminder is designed to sense and remind you to correct your posture through subtle vibrations. It aids in combating the habit of hunching over, making strides towards improving posture, and reducing neck and back soreness. 2. Easy To Use Design: Its unique form fitting design encourages muscle training and aids in developing an effortlessly straight posture and graceful curvature. It is exceptionally straightforward to use, making it ideal for those attempting to correct their posture. 3. Prevent Chronic Fatigue: Hunchback corrector can help prevent the aches and stresses on the neck and waist that come with long hours of sitting. By promoting a correct sitting posture, it boosts work and study efficiency and mitigates the risk of chronic fatigue. 4. Comfortable to Wear: With its stylish appearance, breathable design, and adjustability, the corrector caters to various body types and occasions. As an essential health accessory, it is perfect for home or office use. 5. Quality Invisible Design: Hunchback posture reminder employs quality, lightweight silicone for a subtle, barely there experience. Suitable for both adults and children, it seamlessly integrates into daily life and can be worn anytime and anywhere for discreet support. Specification: Item Type: Hunchback Posture Corrector Device Material: Plastic, Silicone Battery Type: Lithium Battery 200mAh (Shipped with Built in Battery) Host Size: Approx. 8 x 4.6cm / 3.1 x 1.8in . Package List: 1 x Pose Reminder 1 x USB Cable 1 x Instruction Manual