The EX1 from Fiio are aerospace nanotech in-ear monitors designed for personal listening while on-the-go or on-stage and feature extremely light-weight 13 mm titanium drivers that offer full frequency reproduction without distortion or listening fatigue. The stainless steel and duralumin housing is precision CNC milled and designed to suppress resonances, while preserving an excellent transient response. The Kevlar-reinforced OFC cable offers superior sonics and solid strain resistance and longevity, as well as an outer sheathing made from medical-grade TPE for minimum micro-phonics and maximum bio-compatibility. The EX1 ships with a protective case and four sets of ear-tips in various sizes. - Impedance: 16 Ohm - Frequency response: 20 Hz - 30 kHz - Cable length: 120 cm - Weight: 18 g - Colour: Silver.