Harman Kardon SOHO wireless headphones

I only used them once. they typically sell for around $700 on eBay. Here’s the description from the website: Bluetooth-enabled connectivity with NFC provides 100% independence, device compatibility and freedom of movement. Today's wireless information sharing is streamlined and simplified with Bluetooth-enabled connectivity, together with NFC and aptX and AAC coding for lossless data exchange and access to multiple devices. Ear-cup-mounted sensors for easy-access, touch-sensitive control. Instant access to remote functions are as close as your ear-cup controls, which operate by mere touch. 30mm drivers and neo-transducers deliver refined sound quality across all frequencies. Sleek, head-turning design incorporates a premium, stitched leather, stainless steel body and sliders. Using only the finest in craftsmanship and the ultimate in materials, these headphones do more than dress up your levels of sound quality and device access they make you look as good as you feel. Unique fold-flat function enables secure portability.