Edifier, Audeze and STAX have packed their extensive knowledge into the STAX Spirit S3 headphones. STAX was founded in 1938 and has been providing high-definition headphones for professional and audiophile use ever since. Together with Edifier's extensive expertise in providing premium audio solutions and Audeze's market-leading technologies, the three audio titans have taken magnetostat headphones to a new level. Audeze's proprietary magnetic planar drivers along with premium acoustic components deliver superior sound with immersive sonic character. Thanks to these optimal features, movies and complex musical compositions can be enjoyed with high fidelity and resolution. The headphones feature carbon fiber components to reduce weight and a headband and ear cushions trimmed with genuine lambskin leather for fatigue-free listening. Plush and softer Cooling Mesh ear cushions are also included for added comfort on the go. Enjoy up to 80 hours of continuous playback and recharge the headphones within 2 hours. Use the buttons on the side of the housing to manage calls, adjust volume and control playback. In addition, a QCC5141 microprocessor provides minimal latency and clear voice quality for calling and gaming.