Acoustic Excellence: The Core of Listen Professional The Focal Listen Professional headphones are the culmination of six years of dedicated research in headphone engineering. Utilising Focal's historic expertise in designing high-performance transducers, these headphones offer sound engineers unparalleled control over their audio work. With a frequency response of 5Hz to 22kHz and a sensitivity of 122dB SPL, they are designed to provide an accurate and detailed audio experience. Uncompromising Tonal Balance The headphones feature a balanced tonal spectrum, achieved through meticulous engineering. The driver membrane is a proprietary development from Focal, designed to maintain the integrity and dynamics of the original audio track. This ensures that every nuance is accurately reproduced, making them an ideal choice for critical listening and precise audio editing. Ergonomic Design for Extended Comfort Comfort is a key consideration in the design of the Listen Professional headphones. The headband is engineered for a consistent curve, which, along with a layer of silicone, evenly distributes weight to minimise pressure points. This makes them comfortable to wear during extended working sessions, allowing for greater focus and productivity. Versatile Accessories for the Modern Professional The headphones come with a set of versatile accessories, including a coiled 16ft (5m) cable and a straight 4.5ft (1.4m) cable, both with a 3.5mm jack plug featuring four conductors. A rigid carrying case is also included, thermoformed to fit the headphones and additional accessories, making it ideal for business trips and mobile workstations.