Sound Mate Inc. is a start-up company running 3 business units; hearing aids, sleep care, and welfare medical devices. Sound Mate has partnership with companies in U.S. and Japan and distribute their products in Korea. Sound Mate also develops innovate tool for personal healthcare management such as mobile App for rehabilitation of hearing loss. Sound Mate's vision is to be a leader in consumer medical device industry by providing innovative tools and services to elderly people. Sound Mate's mission is to improve elderly people's life of quality.