The Sennheiser MX 580 earbuds have a symmetrical cable design for a sweet tangle-free mobile listening experience. The MX580 earbuds include a Sennheiser storage pouch for safe-keeping along with diferently sized earpad cushion sets and a shirt clip to minimize cable slack when on the move. Nattily, the MX 580 storage pouch fits your earphones and an iPod Nano (4th Gen) player perfectly! The nice 2 year manufacturer's warranty is serviced free only with your HeadRoom '100% authorized Sennheiser dealer' purchase receipt.