Audio-Technica ATH-T22 Dynamic Stereo Headphones 40mm Drivers project crystal clear sound Rotating Ear Pieces for easy one-ear monitoring Gold Plated 1/8" Stereo Jack attached to cable with 1/4" adapter included Self-adjusting lightweight headband for long-wearing listening comfort Circumaural design ensures superior isolation Rotating earpieces for easy one-ear monitoring Gold-plated 1/8" (3.5 mm) stereo connector and snap-on 1/4" (6.3 mm) adapter Maximized power handling capability