Bone-conduction hearing-aid transducer having improved...

Bone-conduction speaker

Bone-conduction transducer and bone-conduction speaker...

Bone-conductive stereo headphones

Boom mounted microphone and connector

Boomless hearing/speaking configuration for sound receiving...

Boundary layer adapter

Boundary layer microphone

Boundary microphone

Boundary microphone

Bulb type speaker structure

Cabinet for a loudspeaker

Cable take-up for earphones

Calotte-type treble loudspeaker

Camcorder with a microphone

Cap and center pole apparatus and method of coupling

Cap and center pole apparatus and method of coupling

Cap for retaining an audio system

Cap with audio system

Capacitive microphone and method for making the same