I'm very happy to have this pleasant purchasing experience, I've been to their offline factory and it's a company with strong strength.The products produced are very satisfactory to me and my customers and the sound is very strong and powerful that meets my expected ideals. Also very thankful for the strong service team, always communicating with me about the goods and the situation in transit.After a long transport the product is still in perfect condition, I guess they put a lot of thought into the packaging.The strong strength of the product customisation has made me fall in love with this company.Completely in all aspects of the customisation needs to meet my needs, thank you again yision and their team, I'm very satisfied with this purchase, and will come back again! I am very satisfied with this purchase and will be back.