Electro-Voice 605 is a dynamic, pressure-type microphone designed for speech pickup in a wide range of applications, including public address systems, dispatching and paging systems, as well as amateur and general communication services. It is known for its rugged construction, high level output, and pleasing appearance. The microphone features a non-metallic Acoustalloy diaphragm, which provides smooth response over a wide frequency range and is highly resistant to humidity, extreme temperatures, and mechanical shock.