Speaker is a kind of transducer which transforms electrical signal into acoustic signal. The performance of louder speaker has a great influence on the sound quality. China speaker manufacturer provides many kinds of common speakers, which are generally divided into internal speakers and external speakers. Speaker supplier provides party portable speaker, terrific car speaker, PA speaker, DJ Line Array, treble driver and subwoofer speaker. Portable pa speaker system will let you have high-quality hearing enjoyment. In addition , we are provide steel speaker basket, plastic cabinet speaker box, and strong speaker tripod.