High-Fidelity Open-Back Circum-Aural Headphones Elear is an open back pair of headphones featuring numerous innovations from Focal which are key to their outstanding acoustics performance. Elear offers the worlds first wide range loudspeaker built-in to a pair of headphones. Additionally they are made from an Aluminum Magnesium blend in a formed shape unique to Focal with the companys brand new M shape dome. This new dome shape has originated from the research performed during the Utopia headphone project that will offer the highest quality sound while avoiding potential avenues of distortion. The acoustic quality of this exclusive solution allowed Focal to avoid the use of any crossover or passive filtering process in order to achieve a frequency response from 5Hz to 23kHz. The result is thus impressively realistic making the headphones virtually disappear and providing listeners with a truly unique high-fidelity audio experience. Elear also benefits from the RD done on Utopia. With regards to mechanical design the rotation traditionally included on the yoke has been moved into the headband to ensure the total purity of the design. The micro fiber fabric used on the cushions offers a true comfort for all head shapes and sizes a quality that is mandatory for long listening sessions. Features Open back circum-aural headphones dedicated to low noise environments High Fidelity pair of headphones featuring wide range loudspeakers made of Aluminum-Magnesium M shape dome (patent pending) Mechanical design offering a full compatibility to any morphology Balanced cable with channels separation for facet and easy custom-made solutions (bi-amp) What's in the Box: Elear Open Back Over-Ear Headphones Soft-touch case with black accents 4m straight cable with digital connectors Owners manual Specifications Type: Circumaural open back headphones Impedance: 32 Sensitivity: 104dB SPL / 1mW @ 1kHz THD: 0.3% @ 1kHz / 100dB SPL Frequency response: 5Hz - 2