RBC-5987 Cassette Earbuds (Discontinued by Manufacturer)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Driver - 10mm </span></li><li><span class="a-list-item"> Impedance -16 ohm </span></li><li><span class="a-list-item"> Frequency - 20-20，000 Hz </span></li><li><span class="a-list-item"> Cord Length - 1.2 meters </span></li><li><span class="a-list-item"> Plug Material - Gold Plated </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41FlLXoV8pL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/415qOT9nA9L.jpg" noproxy>