Communications headset having a detachable receiver capsule and
Communications headset having a universal joint-mounted micropho
Communications terminal having a single transducer for handset a
Compact electroacoustical transducer with spider covering rear b
Compact electroacoustical transducing with flat conducting tinse
Compact foldable headphone
Compact high performance speaker
Compact high performance speaker
Compact horn speaker
Compact microphone and method of manufacture
Compact open baffle speaker system
Compact speaker assembly with improved low frequency response
Compact speaker for portable phone
Compact speaker with a protective cover
Compact speakerphone apparatus
Complex acoustic path and gasket for use with microphones
Compound driver for acoustical applications
Compound electrolytic loudspeaker assembly
Compound loudspeaker drive unit
Compound sound generator