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

Audio amplifiers and preamplifiers are units that amplify a sound signal, which is then sent to a speaker or another amplifier

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

Audio microphones are designed for sound reception and recording applications (speech and music

Audio mixers and consoles are units that combine signals from microphones and/or line level sources to produce a combined signal or signals

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

Audio recorders / voice loggers are used to locate, retrieve, duplicate and/or distribute audio voice or data information from single system environments to large multi-channel networked systems