For 50 years, Mark Levinson has been known for setting the highest standards in audio reproduction, encouraging the discovery of and appreciation for music as artists intended it to be heard. The same details, nuances and intricacies that have propelled Mark Levinsons reference sound for five decades were inspirations in designing the 5909 headphone, which allows for music enthusiasts in motion to unlock a new layer of sound, whether its the slightest breath an artist takes before the chorus, or a hidden harmony discovered for the first time. Built for passionate listeners who desire a more meaningful relationship with music and the ability to explore their curiosities outside the confines of their homes, the Mark Levinson 5909 is the perfect packable for inquisitive travelers and audiophiles. Crafted with luxury comfort and beautiful design in mind, the 5909 is constructed from premium materials including core aluminum components, a leather headband and replaceable leather ear cushions that ensure listening solace for years to come. These sophisticated wireless headphones stay connected to entertainment for longer durations of time with up to 34 hours of playback time and 30 hours with Adaptive Active Noise Cancellation turned on. Durable and lightweight for travel, the headphone comes with an accompanying hard-shell carrying case that also discretely stores cables and an airplane adaptor. The 5909 delivers reference-quality sound via 40mm Beryllium coated drivers that have been expertly tuned to the HARMAN Curve* and designed by the same world-class sound engineers behind Mark Levinsons renowned amplifiers, turntables and streaming players. Audio performance meets the stringent standards for Hi-Res Audio certification indicating the inclusion of the LDAC audio codec, digital circuitry compatible with 24-bit/96kHz processing, and acoustic response out to 40kHz. In addition to high-fidelity audio, the headphone is packed with features that music lovers on-the-go will appreciate, including high-resolution wireless connectivity via Bluetooth 5.1 with LDAC, AAC, and aptX Adaptive technologies, a four-microphone array with Smart Wind Adaption for crystal clear phone calls, Adaptive Active Noise Cancellation with three modes for premium sound isolation, and a selectable Ambient Aware mode for situational awareness. Along with the hard-shell travel case, a complete assortment of cables and accessories is provided including a 1.25m USB-C charging cable, a USB-C to USB-A adaptor, 1.25m and 4m USB-C to 3.5mm audio cables, a 3.5mm to 6.3mm audio adaptor, an airplane audio adaptor, and a microfiber polishing cloth. Available in three color finishes; Pearl Black, Ice Pewter, and Radiant Red. *HARMAN Curve: The result of decades of studies and research into listening preferences and the metrics of great sound, the HARMAN Curve is the acoustic response curve that has achieved the highest subjective scoring in blind listening tests. Dr. Sean Olive, Senior Fellow at HARMAN and Past President of the Audio Engineering Society, has led further work around the science of headphones and developed a predictive measurement score for optimal sound with over-ear, on-ear, and in-ear headphones. This pioneering research was used in the development of the Mark Levinson 5909 and has resulted in the incredible acoustic performance realized in these reference-class headphones.