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The name ESI originated from audio products company Ego Systems, Inc. in Korea. In 2006 ESI Audiotechnik GmbH was setup by RIDI to improve already existing ESI products and to offer unique new audio solutions with some truly innovative ideas. By 2010, all designs were carried out by the new ESI Audiotechnik GmbH in Germany. In 2013 RIDI multimedia GmbH and ESI Audiotechnik GmbH were finally merged into one company.Today, the product development is performed at the company's headquarters in Leonberg, Germany.