Audio headphones are small speakers worn over the ears to isolate sounds for the listener

Sound proofing and acoustic materials are used to attenuate, deaden, or control sound and noise levels from machinery and other sources for environmental amelioration and regulatory compliance.

Audio connectors are used to affix cables to other audio equipment, providing electronic signal transference and grounding protection

Audio amplifiers are used in circuits and systems to process audio signals

Audio transformers are involved in the transmission of voice or sound signals.

Video, audio, and multimedia chips are IC chips designed for video, audio, and multimedia applications

Digital audio systems electronically record and store audio signals such as voice, music, alarm, and security messaging for broadcast, editing, monitoring, and playback