Fairly new er6i's bought when I was living overseas and just needed some isolation from the noise. They just didn't have enough bass for me so they've been in the original packaging (shown) since I bought them. Yes they are several years old but probably have <4 hours on them. I really don't know anything about them. I know they were rediculously expensive when I bought them but I see that they got fairly inexpensive as they stopped making them. Shipping is free to conus. Paypal, insurance, tracking or anything else is extra.