We Eson have perfect AQL International Quality Control System, Quality team included IQC,OQC,IPQC and so on. And professional quality control equipment,Strict control all details of product from design to EX-work, also our factory has got the ISO9001:2008 Quality Management certification, Smeta and SGS audit. Meantime, Our products passed FCC, California 65, ROHS,CE, REACH, RED, BQB, TELEC and Waterproof certification and so on, And we Eson joined Shenzhen High-Tech Enterprise certificate. "superior quality, integrity and innovation" is our business philosophy, "High Quliaty Team, High Quality Technology, Efficient service, High quality production" is our OEM/ODM service.Insist on market innovation, consumer experience as the goal, Make the world sounds more melodious, Become a leader in smart audio industry!