Gerhard Ach-Kowalewski

Ear insert for hearing aids

Hearing device system with behind-the-ear hearing aid devices fashioned side-specific

Hearing aid permitting simultaneous programming and adjustment with a single plug

Pocket hearing aid

Device for fixing earpiece in e.g. shell, of concha hearing aid, has screw nut or screw ring provided for fixed connection of earpiece with hearing aid housing in detachable manner in screwed position

Head-set with hearing-aid functionality e.g. for mobile phone, has ear-piece releasably joined to head-set module

Hearing apparatus with an open-porous cerumen protection facility

Earmould for hearing aid

Ohreinsatz für ein Hörsystem

Hörgerätesystem mit seitenspezifisch ausgebildeten hinter den Ohren tragbaren Hörhilfegeräten