Feature:1. 1. This smart posture corrector is made of high-quality silicone material, which is light and durable, soft and skin-friendly, and comfortable to wear.2. 2. Our posture corrector can monitor posture in real-time, interesting interactive games and professional posture training courses, designed to help you scientifically and effectively correct unhealthy postures such as hunchback while entertaining.3. 3. Aiming at the main parts of the neck, back, waist, etc., our products tailor-made exclusive training courses for you to exercise back muscles and enhance muscle memory.4. 4. Built-in high-precision motion sensor chip and intelligent gesture recognition algorithm, which can accurately capture posture actions in multiple scenes, remind in real time, and correct posture.5. 5. This posture corrector helps to correct the wrong body posture of the back and shoulders, allowing you to improve your unhealthy posture and reshape the beautiful curve after 21 days of use.6. 6. Bluetooth APP design, one-key control, free switching, simple operation.7. 7. Suitable for sedentary office workers, people with bowed heads, students, people with wrong sitting postures, and people with cross-legged people. (Not applicable to children under three years old.)Specification:Material: SiliconeColour: BlackSize: 137*167mm (adult model)Weight: 0.061kg/0.148kgPacking size: 18.8*14.3*3.1cmCharging time: 1.5 hoursLife time: 90 hoursPackage List:1* Hipee Smart Posture Corrector1* USB Cable1* User ManualNote:1. This device is only compatible for Apple mobile phones and for Huawei mobile phones.2. This product is recommended for children and teenagers.3. Please fully charge the device when using it for the first time.4. Please wear the device close to your skin, because clothes may cause inaccurate data.5. When using this device, avoid cutting the collar with sharp objects.