Patent ID: 7394909

Claim:
A hearing device comprising: a one-part shell member forming at least a portion of an outer surface and of an inner surface towards an inner space of said device, said shell member forming a channel out of the material of said shell member, said channel being formed in and along said shell member embedded in said shell member over at least a major portion of the length of said channel over said major portion following a contour of said outer surface; and at least one of an acoustical/electrical converter and an electrical/acoustical converter including an acoustical input or output, respectively, wherein said input or output is acoustically linked to a coupling opening via said channel forming an acoustic path from said input or output to said coupling opening at an outer surface of said device and adapted to be exposed to ambient or an ear canal of an individual wearing said hearing device but not both, and further wherein said channel is tuned to have specific acoustical characteristics.