NO EXTENTION CABEL NEEDED: The coiled cable design provides you a special experience that allows you move all around your cubicle or work area while watching or listening, and allows you to enjoy TV, movies and music from a long distance while sitting on the sofa or chair. PROVIDE CRYSTAL CLEAR MUSIC: Noise-isolating soft inner ear buds provide crystal clear music. COMFORTABLE IN-EAR CANAL DESIGN: The lightweight soft silicone ear buds engineered to create a comfortable listening environment without falling out. (Please use clip to avoid earbuds falling out)