Description: brand new and high quality Features: Made of silicone material, it is lightweight and durable, soft and skin-friendly, not easy to deform, fits the human body curve, and is comfortable to wear. The built-in high-precision chip can accurately record the posture, monitor the change of the body inclination angle in real for time, and vibrate to remind.The automatic memory function can intelligently sense incorrect posture, monitor posture in real for time, and scientifically and effectively help you correct unhealthy postures such as hunchback. Helps correct wrong body posture of the back and shoulders, improve hunchback, develop correct body posture, protect eyesight, and reshape beautiful curves. It is suitable for a variety of occasions, such as work, study, walking, reading, etc., and fundamentally help you solve postural problems. Specification: Rated input: 5V/1A Charging time:about 2 hours Working time:about 1 week (wearing 4 hours a day) Rated power: 0.4W Battery capacity: 200mAh/3.7V Material: Silicone and ABS Optional Color: Black,Blue,Pink Size:app. 18.5 x 14.5 x 2cm / 7.28 x 5.7 x 0.78in Quantity: 1 set Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 x Posture Corrector 1 x USB Charging Cable 1 x User Manual(other accessories demo in the picture is not included.)