Specialized audio equipment is used in specific industries such as the recording industry, and for specialized applications such as voice digitizing and analysis

PCMCIA cards and accessories follow standards developed by the Personal Computer Memory Card International Association (PCMCIA), an international standards body and trade organization.

Antennas are structures or devices used to collect or radiate electromagnetic waves.

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

Radio frequency identification (RFID) products read or write data to RF tags that are present in a radio frequency field projected from RF reading/writing equipment

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