Portable headphones tend to be smaller, more lightweight, and may have features that lend themselves to listening on-the-go, like carrying cases or collapsible headbands. The TM-602 features dynamic element for full legendary sound of Koss and foam ear cushions for open, hear-through sound. Adjustable headband ensures best fit for different head sizes. The headphone includes straight, dual entry 4-foot cord and 1/8" and 1/4" stereo plug for home and portable use.