SHENZHEN WAHCHING TECHNOLOGY CO., LTD founded in 2009, we specialize in the R&D and manufacturing private models of Bluetooth earphones. It is a comprehensive company combined with ID design, structural design, electronic design, mold development, product assembly and sales and proud of a big professional OEM/ODM services for famous brands. Japan, South Korea, United States and Europe are main exporting areas. Moreover, the company has created incredibly popular Amazon products. We have a complete design and product realization team, including electronics, product structure, acoustic tuning, PE engineering and other professionals from the industry. We established a complete product chain system and production quality system through our "cooperative innovation, mutual benefit, and win-win" business philosophy. We have passed ISO9001, ISO14001, OHSA18001 management system certification, private model products have been applied for patent protection, and has a global Bluetooth BQB certification, the United States FCC, the European Union (CE, ROHS), Japan TELEC (MIC), battery testing (MSDS, UN38.3, Aviation Report, Shipping Report), IP67 Dustproof and Waterproof Certificate, Appearance Patent Certificate of China and Europe& United States, Appearance Patent Evaluation Report, Technical Patent, Utility Models, Technology etc. As your business partner, we prioritize customer profit with our perfect management system. We look forward to your visit and the company management and staff will be happy to see you among their valued customers!