WE ARE THE AUDIO SYSTTEM MANUFACTURER IN COUTH CHINA , GUANGZHOU, A LEADING AUDIO MAKER IN COUNTERPART,WON THE HIGH PRESTIAGE IN 15 YEARS,SPECIALICES AT MAKING PA SPEAKER , PA AMPLIFIER, MIXER, AND ANY OTHER PERIPHERAL,ETC;THE ITEMS HIGH QUALITY AND CHEAPEST PRICE,NOW WE LOOKING FOR COOPERATION.