It is not that difficult. You are expected to follow the instruction. Then perfect installation and good operation can be achieved. We have realized the easy installation of heated thermal underwear with years of efforts. Each step has been tested, so as to make sure that the operation is normal. You may send an email or call us when faced with any problems. If it is hard to describe, a video is acceptable. Then engineers will offer a solution after analysis.

With the spirit of continuous R&D, Dongguan S-King Limited has developed into a highly developed enterprise. According to the material, Dongguan Shujian Shoes Material Co.,Ltd.'s products are divided into several categories, and Cycling Equipment is one of them. This product has the unexpected comfort. The materials used are soft and seam-free, which eliminates pressure points and friction against the skin. It is highly valued by our partners such as Invisole and Heatup. A closely spaced international sales network ensures qualified customer service of Dongguan S-King Limited. The product can be recharged and can be used for many times.

We strictly comply with the basic behavioral principles of business ethics in the relations with our shareholders, customers, suppliers, employees, local communities, and the environment. Welcome to visit our factory!