1.Warranty period is one year. If any malfunction is caused by quality related problems within one year from the date of purchase, MSL will try to solve it in the Internet, if it could not be solved, we could analyze it and get which part have problem and send the part back. The product can be repaired for free or returned to MSL.
2.We are a legal company in China and I can send you our certificates, also you can see our website has so many products.