Pioneer Japan has designed the lightweight SE-M390 Stereo Headphones with a 40mm driver, a strengthened 3.5 meter cord, and a “free-adjust” headband.  The phones carry a frequency response of 5 to 29,000 Hz, an impedance of 32 ohms, a neodymium magnet driver, and a mini/standard gold-plated plug. They also feature the company’s Bass Duct with a subwoofer outlet. The headphones are available for $55.00, with a freebie 1.5m extension cord included, at Audio Cubes.