The Koss P15 is a low-end headphone set for users always active and on the go designed with a special "wrap-and-go" body design. The P15 headphone set comes with a convenient carrying case, and portable ear-bud design. The P15 headset also features a lightweight, electro-dynamic element that outputs a frequency response of 40-20,000Hz. The P15 headset includes additional features such as a 4 foot straight cord, a wind up spool carrying case, and a rubber like wrap around strap that will wrap around a wrist for protective storage as well. The Koss P15 headphone set was released on June 15, 2004 and has an MSRP of $14.99.