After-sales Guarantee：On the premise of normal use of the product, we provide quality guarantee service for all products on sale. If the product has non-human quality problems during use, you can apply for after-sales service in accordance with the return and refund policy.

Customer Service：We provide you with 7×10 hours online customer service. You can contact the customer service through the official store website, order message and other ways. The customer service will timely answer your questions such as order consultation, product use and after-sales rights protection.

Product Consultation：If you have any questions about the function, usage method and compatibility of the product, you can contact the customer service at any time, and we will provide you with professional product consultation and usage guidance.

Maintenance Service：If the product exceeds the return and exchange time limit but has non-human quality problems, we can provide you with paid/unpaid maintenance service (subject to the actual product failure). The return freight during the maintenance process shall be implemented in accordance with the return and refund policy according to the cause of the failure.

Service Tenet：We always adhere to the thoughtful and efficient after-sales concept, and try our best to solve all kinds of problems you encounter during the shopping process. If you have suggestions or complaints about our service, you can feed back directly to the customer service, and we will respond and handle it within 24 hours.