Koss TM602 Portable Headset Comfortable foam ear pads 3.5 mm Plug Durable headband Clear, high quality Audio Connectivity technology : Wired Foam ear cushions for open hear-through sound Adjustable headband for best fit Straight dual-entry 4-foot cord Includes 0.125-inch and 0.25-inch stereo plug for home and portable use Frequency response: 100 to 18,000 Hz