Dongguan Electronic Technology Co,.Ltd. As a professional manufacturer,Changyue electronic is mainly engaged in designing ,manufacturing and selling of middle-high end bluetooth speaker, portable speaker, wireless speaker etc. We take pride in each of our products , as they are born with the love of fashion, constant innovation and pratical use. Each is unique and classic! They have gone from a listening device to a statement of who you are ,what you like and how you like you to listen to music.