Califone 2021AV Deluxe Stereo Headphones with Inline Volume Control, 3.5mm Plug2021AV is a lightweight headphone that is comfortable for students of all ages. Designed with cobalt transducers to perform with surround sound quality. Works with a variety of devices. Includes 6 foot CaliTuff Cord that is braided and PVC covered to resist chewing, cutting or separation. Cord is reinforced where it attaches to the ear cup, has convenient inline volume control and ends with a 3. 5mm, stereo plug. Features: Lightweight for added