The Audio-Technica ATH-M20x are wired, closed-back dynamic headphones designed for studio tracking and mixing with comfort during extended wear. Their circumaural design offers excellent sound isolation.  The 40mm drivers with copper-clad aluminum wire voice coils and neodymium magnets deliver accurate, balanced sound reproduction with minimal distortion even at high volumes. They are tuned for enhanced low-frequency performance and have a frequency response of 15-20,000Hz. With a power handling capacity of 700mW at 1kHz, a sensitivity of 96dB and an impedance of 47ohms, these headphones can deliver clear audio. Their lightweight design and nine-foot cable with 6.3mm adapter provides comfort and flexibility. The advanced design, build quality, engineering and price point make them a great value for beginners, podcasters, and music students.