Patent ID: 8284974

Claim:
Hearing aid to be wearable substantially completely in an auditory canal of a user, comprising: a device housing which comprises a microphone at a proximal side thereof; a loudspeaker which is in open communication with a sound-emitting opening at a distal side via at least one sound transmission channel; a battery chamber for receiving a battery therein; and a sound processing device for processing a sound signal received by said microphone and sending the sound signal to said loudspeaker in an at least partly processed form, wherein said at least one transmission channel and said microphone being acoustically at least substantially completely separated from one another within said device, said device housing is releaseably accommodated in a fitting body having a close fit at least locally in the auditory canal of the user, said at least one transmission channel extends at least partly in a groove formed in either or both of an inner wall of said fitting body and an outer wall of said device housing, and said fitting body comprises said sound-emitting opening.