The HiFiMAN SUSVARA Planar Magnetic Open-Back Headphones use "Stealth Magnet" technology to provide an acoustically transparent sound without interference from reflections and diffractions. The nanometer-grade diaphragm is under a millionth of a meter thick and works well with the stealth magnets to ensure a remarkable tonal quality and clarity with a frequency response of 6 Hz to 75 kHz and an impedance of 60 Ohms. The CNC-milled metal headband is hand-polished and accommodates a wide range of head sizes with an overall weight of 15.9 oz. The replaceable asymmetrical earpads conform around the human ear, comfortably distributing the weight evenly but with a secure and sound grip. The supplied cable is made stronger with the improved materials of crystalline copper and crystalline silver wire, which provide a wide frequency range, low signal loss, and enhanced emphasis on the low end for quality audio reproduction. The HIFIMAN SUSVARA ships with a detachable 1/4" cable and a detachable 4-pin XLR cable.