Shenzhen Rongshuo Technology Co., Ltd. has been one of the leading manufacturers of electronic products in China for many years. Our joint factory is located in Dongguan, near Shenzhen. Our factory covers an area of 4,500 square meters and has more than 100 employees. It mainly produces and sells rechargeable hand warmers, USB desk fans, and a series of products. Especially hand warmers. Our products are widely used in camping, physical therapy, hot compress, heating, cooling, etc. After years of development, our equipment and technology have made great progress.