These headphones fill your ears with amazingly precise and accurately reproduced music, they look beautiful, they rest on your ears and head comfortably, and they are surprisingly affordable. The K511's wide frequency range gives you every sound in your CD or MP3 player — and if you want to plug into other sound sources, go ahead. These headphones come with both a 1/8-inch (3.5-millimeter) main connection and a 1/4-inch (6.3-millimeter) jack adapter. They also feature a self-adjusting headband and leatherette ear pads for long-lasting comfort. We think you'll love them.