Quantumon Co., Ltd. engages in the manufacture and sale of smart device accessories. It operates through the Kokiri Outside business division and Kokiri Inside business division. The Kokiri Outsie business division provides products such as power bank, earphones, cables, air cleaner, bluetooth speaker, and humidifier. The Kokiri Inside business division offers internet of things platform services and hardware smart solutions. The company was founded on May 10, 2012 and is headquartered in Seoul, South Korea.