Maxell Bass 13 Headphones - Stereo - Wired - Over-the-head - Binaural - Circumaural - Black Adjustable headphones feature 40mm drivers to deliver immersive, full-range sound and an enhanced listening experience. Built-in microphone allows you to have hands-free conversations for talking on-the-go. Noise-isolating design blocks out unwanted background noise for distraction-free use. Soft cushion headband and earcups sit gently over your head for a completely relaxed fit and enjoyable use through extended listening periods.