Polk Audio UltraFit 1000 Headphones - Black (ULTRAFIT 1000BLK) High Performance Digital Sound - Surprising detail and fidelity to maximize performance 3 Button Remote Control & Microphone - Use your iPhone and iPod on the fly with in-line controls. SecureFit Support - Exercise or play knowing your headphones will stay comfortably in place. Ultra Flexible Tangled-Free Planar Audio Cables - Avoid cable tangle and unwanted microphonics with oxygen-free cables in two custom lengths. StrainGuard - Kevlar core and computer designed transitional connections eliminate cable failure