Experience the benefit of quality hardware and sound along with the convenience of smartphone content and call control. - The on-board control integrates with sony's easy-to-use Smart Key app allowing you to assign actions to the button clicks giving you customized control for your Android device. Features: Comfortable, secure-fitting silicone earbuds with 9mm neodymium drivers for dynamic sound Choice of colors to suit your style 5–24,000Hz frequency range Y-type cord, 1.2m length