About Us DEOS is operated by the Siebenbergs, a family with a long history in the jewelry business. After 6 successful generations making jewelry, the family was ready for a new challenge. These art-entrepreneurs brought creativity, ingenuity and an appreciation of beauty and excellent craftsmanship to DEOS in 2007 through a patented earphone cover that meshes jewelry and technology.The patented earphone cover is a modern version of the earring, representing the “expression” component of DEOS. The recent launch of DEOS in-ear headphones takes the company full circle, bringing home the “sound” element of Defining Expression of Sound & Style. DEOS is proud to present products that redefine personal expression, bridge the accessory-technology gap, and lead the evolution of the earphone in ways that compliment and enhance your individual style.