Sonarworks SoundID Reference for Speakers & Headphones with Measurement Microphone (Box)A speaker and headphone calibration software delivering consistently accurate studio reference sound. In less than 20 minutes you can calibrate your existing studio speakers with a measurement microphone (included) and calibrate your existing headphones with more than 280 headphone calibration profiles already included in the software as ready to use presets. With an applied calibration profile the software sets the frequency response target to be