New arrival design long battery life with IPX 4 waterproof true wireless charging earphone

Founded in 2001, Huizhou Xinshijie Industry Co., Ltd (NLD) is one of the leading manufacturers of earphone and headphone products, which integrates production, development and sales together. With 19 years' OEM/ODM experience based in Guangdong province in China, the company has achieved great success in developing the international market.With more than 300 employees, our production line is combined with modern production equipment and complete auxiliary facilities offering the automatic testing and analysis system. The company has ISO9001, ISO14001, and BSCI certificates.The production line mainly produces both wireless and wired headphone and earphones, the manufacturing plant area is about 8000 square meters, with in depth knowledge and experience in R & D, engineering, cable production, assembly, quality control.Inclusive of 7 non-dust assembly lines, the output is more than 500K sets of headphones/earphones per month. NLD also sets up beer line and assembly production line. Inclusive of advanced integral ERP system and inspection equipment, including Electro Acoustic Device Analyzer, Soundcheck Acoustic Tester, Constant Temperature and Humidity Test Chamber, Driver Polarity Test, Salt Spray Test, Swing Test machine, Tumbling drop tester, lidding life test, Stretching life test, Head band extension tension testing machine etc.The company emphasis on its cultural construction. With unique and vivid cultural characteristics, NLD has won consistent recognition from both demotic and foreign of the industry. Based on the domestic market and taking a broad view of the world, our products also export into global market, such as the USA, Germany, UK and Japan etc.Adhering to the principle of "Credibility Centric, Quality First", NLD will endeavor to make contributions for the development of the society and the electronic industry!