The AKG K 313 in-ear bud headphones deliver true AKG performance - high-output sound and excellent frequency response - from virtually any portable device, including iPhone. Using larger 13mm drivers, they deliver a richer, more dynamic listening experience from any portable device. Not only do they sound great, they look and fit great too. Shaped in green and white, their lightweight, comfortable fit makes them the perfect companion for everyday use. A protective carrying pouch is even included to keep your headphones safe and secure when not in use.