A pair of black closed-back planar magnetic headphones with FEM-optimized neodymium magnets and a 7-layer driver diaphragm. The PM-3 produces a natural sound from 10Hz to 50kHz, weighs 320g (just over 11 ounces), and has a 102 dB sensitivity, making it easy to drive with less powerful audio sources. It also comes with a 3 meter main cable and an optional 1.2 meter portable cable with either Apple or Android device controls, or no device controls.