For 12 inch trolley speaker, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our 12 inch trolley speaker has been well received by many customers and enjoyed a good reputation in many countries. Guangzhou 7-sword Electronics Co.,Ltd. 12 inch trolley speaker have characteristic design & practical performance & competitive price, for more information on the 12 inch trolley speaker, please feel free to contact us.