ProHT Dynamic Stereo Headphones(87050) with Volume Control& Ear Cushion, Durable Over-ear Stereo Headphones, 3.5mm Miniature Jack, Black Connectivity Technology: Wired In-line volume control- Convenient volume controller on cable. Height adjustable headband. Lengthy: 6' cord Lightweight design- Dynamic Stereo Headphones with Volume Control made of lightweight, durable plastic. Comfort padded ear cups - Comfort-fit with a wide headband and foam-cushioned ear cups for added listening comfort. Height adjustable headband. Compatibility- Compatible w/ all sound cards and portable music device w/ a female 3.5mm plug. 100% quality guarantee,1 years warranty