Ningbo Yinzhou Aika Electronic Co.,Ltd is a professional manufacturer of pro audio products,which was founded in 2010 and located in Ningbo,Zhejiang,China. With 12 years development,Ningbo yinzhou Aika Electronic Co.,Ltd has been well known by the customers from the pro audio market, and the products range have been expanded to speaker box,woofers,tweeters,mixers,ampl ifiers and portable P.A System......