Samson's SR350s offer quality performance and sound isolation in a lightweight, over-ear design perfect for everything from home listening to fitness applications. The lightweight design is ideal for music recording, practice andlistening. The SR350 features a over-ear, closed back design with cushioned ear cups and an adjustable padded headband. With 35mm drivers with rare earth magnets and 20Hz-20kHz frequency response, these headphones deliver apowerful audio performance. 1/4 inch. adapter included.