This is a pair of Etymotic HD3 safety earphones, they are brand new but missing the packaging and the foam eartips, of which many sizes are available on eBay or online. I have plugged them into an iPod to confirm they work perfectly, other than this they have never been used. They come with the carrying case. The volume control on the cable is compatible with most digital music players etc. It also features a microphone and can be used to take calls on a mobile phone. If you have any questions please dont hesitate to ask. Thank you.