These high-grade cables are great for connecting your stereo feed from your headphone jack (commonly called auxiliary in) to your portable audio devices such as MP-3 players, iPads, iPods, headphones and cellular phones. We've gone the extra mile and then some to create what we think are the best cables on the market. We made the connectors extra short for those tight installs, added extra shielding and used thicker gauge conductors to ensure true performance. They are colored-coded by length for easier identification. Our Round PVC Jacket is CL3 Rated and as soft as they come! They're ridiculously flexible and offer a strong strain relief for those sharp 90-degree turns.