Philips Audio Philips SHP9500 HiFi Precision Stereo Over-Ear Headphones (Black) authentic

Product Name: Philips Audio Philips SHP9500 HiFi Precision Stereo Over-Ear Headphones (Black) authentic
Purchased, taken out of box to try and literally put back into box after less than a minute. Won't work for person. From the manufacturer: High precision sound Enjoy an authentic listening experience in style. Created to offer outstanding performance through open back architecture and high-precision 50mm speaker drivers. Ready for use with or without amplifiers Philips SHP9500 and its open-back, over-ear design is comfortable for long up-term wear and has low impedance so that it will work great with and without headphone amplifiers, allowing you to enjoy greater sound transparency and smooth high frequencies. It comes with a 1.5m cable (removable) for freedom of movement for indoor use, as well as a gold-plated 3.5-6.3mm adapter for those with audiophile grade equipment. Frequency range: 12 - 35,000 Hz Sensitivity: authentic 101 dB Maximum power input: 200 mW Impedance: 32 Ohm Acoustic system: Open.