Hearing aid wherein the direction of incoming sound is determine
Hearing aid which allows non-computerized individual adjustment
Hearing aid with a capacitor having a large capacitance
Hearing aid with a directional microphone characteristic and...
Hearing aid with a directional microphone system as well as...
Hearing aid with a face plate that is automatically...
Hearing aid with a flexible shell
Hearing aid with a magnetic field-controlled switch, and...
Hearing aid with a microphone in the battery compartment lid
Hearing aid with a microphone system and an analog/digital...
Hearing aid with a radio frequency receiver
Hearing aid with a radio frequency receiver
Hearing aid with a tightening ring
Hearing aid with a ventilation channel that is adjustable in...
Hearing aid with a volume wheel
Hearing aid with acoustic feedback suppression
Hearing aid with adaptive matching of input transducers
Hearing aid with adaptive matching of microphones
Hearing aid with adaptive microphone matching
Hearing aid with adaptive noise canceller