I purchased this item as nearly new and have only listened to it once myself. I used ear pad covers during the listening session. It's in very clean condition with no noticeable signs of use. ■ Unrivaled Audio Quality Equipped with Audeze's latest 90mm planar magnetic drivers, the Maxwell delivers punchy bass and outstanding resolution. Audeze's developed planar magnetic drivers are used in major recording and game studios worldwide, and the headphones incorporate patented technologies such as Uniforce voice coils, Fluxor magnets, and Fazor waveguides. Experience industry-leading high-resolution sound up to 24-bit/96kHz via wireless or USB. ■ Specifications Continuous Playback Time: Up to approximately 80 hours Body Charging Time: Up to approximately 2 hours Driver Configuration: 90mm planar magnetic driver Supported Codecs: LE Audio, LC3, LC3plus, LDAC, AAC, SBC Bluetooth Version: 5.3 Frequency Response: 10Hz-50kHz Weight (Body): 490g (including battery) Included Accessories: Dedicated USB dongle, USB cable (Type-A to Type-C), 3.5mm stereo mini cable