Cootree In-Ear Headphone Sport Earbuds Earphones with Built-in Mic Tangle-Free Ceramic Black NOTICEThe volume control function might not work when use for android devices) POWERFUL DEEP BASS: In-Ear Earbuds Stereo Bass performance and precision response for your fantastic experience CERAMIC BODY: Perfect ceramic antenna offers a sleek,stylish design,enable you enjoy your music fashionably COMFORTABLE-FIT: Lightweight sport design in-ear earphones Compatible with iPhone, iPad, iPod, smart phones and other devices with a 3.5mm audio jack BUILT IN MICROPHONE: Built-in mic for convenient communication , soft and durable cable for daily bending/friction