Urbanears Plattan ADV Wireless - Collapsible Headphones with Handmade Drivers, Remote and Sharing Zoundplug - Moss Bluetooth enabled wireless headphone 3D Hinge - Rotating metal parts for a custom fit Zound Plug - Allows for instant music sharing Machine Washable Headband - Detachable fabric headband for easy wash and wear Collapsible structure - Folds down to the size of your fist for easy transport and storage