JVC Home HAF140A Gumy Earbud Headphones (Blue) Color-matched to all 4th-generation iPod? Nano & Shuffle. The curved brushing provides a more comfortable fit. Powerful 13.5mm Neodymium driver Sensitivity: 108dB/mW Gold-plated iPhone?-compatible slim plug 3.3-ft color cord Powerful 13.5mm Neodymium driver Sensitivity: 108dB/mW Gold-plated iPhone-compatible slim plug