User configurable headset for monaural and binaural modes
User control for hearing prostheses
User disposable sleeve for use within the ear canal
User disposable sleeve for use within the ear canal
User interface for communication system
User selectable noise canceling for portable microphones
User selectable unidirectional/omnidirectional microphone housin
Utilizing word-to-digital conversion
Vacuum tube microphone apparatus
Vandal-proof communication system
Variable and reactive audio power amplifier
Variable and shiftable acoustic output signal limiter
Variable attack and release system and method
Variable bandwidth multivoice demodulating circuit
Variable beamwidth transducer
Variable bit rate coding system
Variable bit rate speech codec with backward-type prediction and
Variable damping circuit for a loudspeaker
Variable digital control for electronic device with rotary switc
Variable directional capacitor microphone comprising elastic...