Audio-Technica ATH-M50 Professional Closed-Back Studio Headphones (Coiled Cable) + Fiio E6 Stereo Headphone Amplifier This Kit Includes Some Of The Essential Accessories You Need To Take Full Advantage Of Your New Audio-Technica ATH-M50 Circumaural Closed-Back Stereo Professional Headphone Audio-Technica ATH-M50 Professional Closed-Back Studio Headphones &lt;&gt; Professional-quality closed-back studio monitor headphones &lt;&gt; Lightweight, comfortable design Collapsible for easy storage in the included pouch &lt;&gt; Padded, adjustable headband &lt;&gt; Earcups can swivel for single-ear monitoring &lt;&gt; Single-sided coiled cable for minimal tangles &lt;&gt; Gold-plated 3.5mm stereo mini plug with screw-on 1/4&quot; adapter Fiio E6 Stereo Headphone Amplifier &lt;&gt; Compact and lightweight design, ideal for use with portable music players &lt;&gt; The advanced circuit offers a high signal to noise ratio, wide dynamic range, and minimal distortion