1、Powerful Functions: The posture corrector can provide long lasting back support, correct incorrect postures, prevent progressive curvature of the spine, change bad habits of kyphosis, and relieve low back pain at the same time. 2、Effective Pain Fatigue Relief: The high strength nylon strap and strong ABS controller unit can effectively distribute the pressure, provide even support, help you relax, relieve muscle pain and physical fatigue. 3、USB Rechargeable: The built in rechargeable battery can be directly charged and powered by USB, giving you continuous enjoyment. At the same time, the indicator light can clearly display the working and charging status, making full preparations for the next use. 4、High Elastic And Adjustable: The high elastic shoulder strap is matched with an adjustable buckle, which can be quickly released and adjusted to a suitable size. It is convenient to wear and is widely suitable for children and adult users. It is practical and easy to use. 5、Wide Range of Application: Small size and lightweight design, you can easily fold the back brace to save storage space, easy to carry, very suitable for use at home, office or travel. Item Type: Smart Posture Corrector Material: High Strength Nylon Bag + ABS Product Color: As Pictures Shown Product Weight: Approx. 110g / 3.9oz Battery Type: Lithium Battery (built in) Battery Capacity: 200mAh Charging Method: USB Charging Applicable People: Kids /Adults Unisex Product Function: Cervical Spine Correction, Chest Extension, Improvement of Kyphosis, Prevention of Rickets, Protection of Eyesight 1 x Smart Posture Corrector 1 x Data Line