In 2003, Oushida Hearing was established in Xiamen City, which is a national high-tech enterprise, specializing in the research and development, production and sales of hearing aids and other hearing products, covering hearing aids, hearing equipment and acoustic-related equipment. As a leading domestic hearing aid brand in the industry, OSD actively explores overseas markets, has more than 500 agents around the world, and also established the largest hearing aid production base in Fuzhou in 2013.
 
There is no shortage of high-performance hearing aids, and as a representative of high-end products, the Lingfeng series has excellent performance in multi-channel voice management and wireless transmission. More competitive is the mid-range products, the Lingjun series has a convenient mobile phone software manual adjustment function, excellent multi-channel compression technology effectively improves the sound clarity. The unique digital fitting method of Lingyin series makes fitting adjustment more convenient, and the price of 3480 yuan to 6380 yuan is obvious compared with foreign products that often cost tens of thousands.
 
90% of China's hearing aid market is occupied by foreign brands, compared with foreign brands, domestic brands lack independent chip development technology, lack of comprehensive functions and good sound quality hearing aid products, Oushida as a leader in China's hearing aid brand, want to completely overcome the technical disadvantages, there is still a long way to go.