A richer sound experience: Feel every note and hear every moment with harmony earphones. Absorb and immerse yourself in a high performance audio experience. Tangle-free cable and metal housing design: Flexible, tangle reistant cable with metal earbud housing. One-click: A built-in microphone and playback control to ensure a full range of function when the harmony earphones are plugged in. Ultra-comfort cushions: Three different cushion sizes are provided to help you find the ideal fit. These ultra-comfort cushions enable passive noise isolation and the perfect grip. Tangle-free use: The harmony earphones have a lightweight cable design that minimzes tangled wires.