Single-sided headset/headphone with <5% microphone distortion (listen-only). Rugged, modular design, lightweight construction, installation options and its multifunction use beyond the live studio or theater venue. Modular design allows to interchange modules to allow for the best headset configuration for any environment. Noise-canceling microphone, combined with the headphone transducers, provide clear and precise communication in noisy environments. Finally this headset is not limited to live studio or venue communications. By installing the appropriate module, can connect to an MP3 player or any other type of audio device and listen to the programming of choice. Designed to provide clear communications for professional applications including live remote or studio broadcasting, film, TV and theater intercom communications. Audio level limited and conform to the EU council directive 2003/10/EC.