NVX Studio Over-Ear [42mm Driver] Headphones with ComfortMax Earpad Cushions and 1/4-inch Adapter [XPT100] Large 42mm neodymium drivers deliver smooth, even tonality and exceptional, accurate sound ComfortMax Soft Leather Ear Pads are contoured providing superior comfort for long studio sessions Includes 1/4-inch adapter that makes it ideal for any music mixing and application Perfect10 headphones are great for studio engineers that frequently take headphones on & off when mixing Includes a set of straight ear pads that are ideal for anyone wanting a more traditional fit Exceptionally accurate acoustical performance Smooth, even tonality is ideal for studio monitoring &amp; mixing Large 42mm neodymium drivers bring depth &amp; dimension to music Two sets of ComfortMaxTM Cushion Earpads <ul class="a-unordered-list a-vertical"> Heat Sensitive, low-rebound memory-foam padding Wrapped in comfortable and flexible protein leather One natural fit set engineered to match your head contours One standard set also included Balanced detachable cable with gold-plated connectors Breathable oversized leather ear pads provide maximum comfort &amp; superior isolation 64 impedance is compatible with portable devices &amp; excels with amplification Wide frequency response (10Hz-26KHz) captures the full musical spectrum Ulta-Low &lt;0.2% THD allows for optimal fidelity during playback