These Gumy phones from J V. C offer a more comfortable fit & come in 9 funky bright colours that completely match the iPod Nano 5G series. They feature a curved bushing for comfort & a powerful 13.5 mm. Neodymium driver unit so they are the perfect option for those seeking both style & performance. The also feature a 1.0 m. colour cord & a unique package design. Specification: Gold-plated iPhone-compatible slim plug. Driver Unit: 13.5 mm. Magnet type: Neodymium Frequency Response: 16-20 000 Hz. Nominal Impedance: 16 ohms. Sensitivity: 108d B/1 m. WMax.