This is a 4' long cable with 3.5mm headphone connectors wired for use with any headphone that uses that size, such as the Focal Elear and Clear, HifiMAN Sundara, and others. Terminated with a 3.5mm plug. Made with a Plussound Cryo-treated plug and litz wire, with cotton braiding. Note: will not work with Mitchell & Johnson headphones. $50 shipped CONUS.