Acoustic apparatus and headphone
Acoustic reproducing apparatus
Active noise reduction microphone placing
All-in-one headset
Amphibious personal audio system
Apparatus and method for transmitting sound
Audio apparatus
Audio device
Audio headset
Audio output apparatus and audio processing system
Audio signal amplifier circuit and a portable audio equipment us
Audio signal reproducing apparatus
Audio signal reproducing apparatus
Audio signal reproducing apparatus
Automated voice over internet protocol wireless headset
Automatic stereo/monaural headphone
Circuit and method of 3-wired interface for headphones
Connector device for detecting insertion or removal of plug...
Connector device for information-handling apparatus and connecto
Crosstalk cancellation using load impedence measurements