<http://schema.org/description>
"18Hz &amp;amp;ndash; 20kHz , 32 Ohm, 100 mW, 96 dB, 30mm dynamic, 3.5 mm stereo"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.pacetech.com/philips-lfh2236-circumaural-head-band-black.html>