The present invention provides a hearing device with locking apparatus comprising a first component (10) with a housing (11) being adapted to be carried outside of or at the human body, a second component (20) to be inserted either partially or fully into an ear canal of a human body and connecting means connecting mechanically said first and said second component (10;20). The connecting means comprise a tube (30) and a first fastener (31) being arranged at one end of said tube (30) and being adapted to detachably connect said second component (20) with said connecting means. The first fastener (31) further comprises an individual locking element (5;9) to be swiveled into retaining or locking surfaces (24′) arranged within said second component (20), thereby contacting outer surfaces of said first fastener (31) in its connected state with said second component (20). The first fastener (31) thus will be detachably secured to the second component (20) of the hearing device.