The company sells professional products and accessories, involving some professional knowledge, some products have particularities, such as because of the manufacturer's aging test before leaving the factory, which is described in the product description. If the buyer does not read, it is easy to cause misunderstanding, and each buyer's psychological standards and expectations are different, so when you have doubts or dissatisfaction with the product. At the same time, please do get in touch with us in time. The medium and bad ratings can not solve the problem, and we believe that after-sales can solve the problem for you and make you satisfied.