The Sonarworks Reference 4 XREF 20 Microphone is a high-quality calibration microphone designed to provide accurate and reliable audio measurements. This microphone is ideal for professionals in the music, film, and audio production industry who require precise audio calibration. While the software is not included, users can easily integrate this microphone into their existing setup to ensure optimal audio quality and calibration. The Sonarworks brand is well-known for producing top-notch audio equipment, making this microphone a trusted choice for those seeking reliable audio solutions.