Headset interface assembly

Headset power management

Headset with flashing light emitting diodes

Headset with flashing light emitting diodes

Headset with foldable noise canceling and omnidirectional...

Headset with memory

Headset/radio auto sensing jack

Insert earphones for audiometry

Jack circuit and portable type electronic apparatus and...

Method and apparatus for conserving battery power

Method and apparatus to transmit audio into the human ear

Methods of calibrating tone-based communications systems

Multipurpose earphone set

Music reproduction apparatus, audio player, and headphone

Optically coupled headset and microphone

Personal audio system with earpiece remote controller

Personalized headphone virtualization

Portable musical instrument amplifier

Portable musical instrument amplifier

Submersible headphones