Uphold the "customer satisfaction first" service purpose, constantly improve the quality of after-sales service, to provide customers with satisfactory professional services. In order to enable you to better use of this product, the company to you to make the following after-sales service commitment, and in accordance with the commitment of the service to provide you with warranty, maintenance services. Warranty Service Commitment: 1. The company shall be responsible for the maintenance of the products free of charge in case of failure within 2 years from the date of sale. The following situations are not covered by the warranty: A) the product exceeds the warranty period B) the product has not been used, maintained, and maintained as required by the product instruction c) the product has not been authorized, unauthorized repair damage caused by repair repair repair repair repair repair repair service commitment: The company to sell the product to provide life-long repair service. Products beyond the warranty period after failure, if the replacement of parts, only charge costs.