INCLUDED - Audio-Technica ATH-R50x Professional Open-Back Over-Ear Reference Headphones, Desktop Stand, ensuring immediate setup and professional use. DRIVERS: Features specially engineered 45mm large-aperture drivers designed to deliver a spacious soundstage and surprisingly powerful bass for an open-back model. RESPONSE: Boasts an ultra-wide frequency response of 5 Hz to 40,000 Hz, allowing for the accurate reproduction of fine musical details and deep sub-bass. DESIGN: Utilizes a true open-air design that eliminates internal resonance and provides unrestricted airflow for a natural, transparent listening experience.