Guangzhou CMX Audio Co., Ltd is the leading digital IP public address system, Digital EN54-16 Voice Evacuation System, IP network audio system and digital conference system manufacturer in China, we have one around 1,000 SQ meters factory well equipped with 2 SMT machine. Our factory are well quality-oriented ensure to make the highest reliable equipment for export business. The quality control system is strictly followed by ISO9001 and ISO14001.We commit 5 years quality warranty to our installer, system integrator and distributor. Most of products are compliant with CE, RoHS, CB, FCC or UL, speaker with IP66 waterproof and fireproof certificate. We help to design and consultant public address system, digital PA system, digital IP network audio system, IP intercom system, voice evacuation system, digital conference system, digital IR wireless conference system and simultaneous interpretation system. We offer complete before sales and after sales technical support.Our Motto: To over your expectation is our mission.