The new Edition XS expands on its predecessor's achievements with several essential upgrades. Featuring Stealth Magnet Technology and the company's NEO supernano Diaphragm, the Edition XS produces a wide soundstage that puts the listener in the best seat in the house. The NEO supernano diaphragm is 75% thinner than the original version, resulting in lightning fast response for detailed sonic output without discernible distortion. Edition XS from HIFIMAN brings the depth and range of well-recorded music to an affordably priced headphone. Acoustically Invisible Stealth Magnet Unlike the sound waves created by a conventional magnet, the special shape of the Stealth Magnets enables the waves to pass through the magnets without generating interference. HIFIMAN's advanced magnet design is acoustically transparent, dramatically reducing wave diffraction turbulence that degrades the integrity of the sound waves. The reduced distortion yields pure sonic output that is accurate and full-range. HIFIMAN Heritage The new NEO "supernano" Diaphragm is 75% thinner than previous designs, resulting in fast response and a detailed image with lush, full range sonics. The Headband The light weight and ergonomic accuracy offer maximum comfort for hours of listening pleasure. The exterior is refined matte black material, and the interior features high-grade memory foam for the most comfortable fit and elasticity. The headphone's structural design support overall durability that retains its comfortable fit for years of enjoyment. The Cable HIFIMAN's new 3.5mm sockets are similar to those found on the most common audio devices. The supplied 3.5mm cable is user changeable and replaceable. Specs Frequency response: 8kHz-50kHz Impedance: 18 ohm Sensitivity: 92dB Weight: 14.28 Oz. (405g)