Koss headphones have been around a long time. I remember doing some pro recording with them in the 70s, and I know they go back at least to the early 60s. The company isn't stuck in the past, though, so it has announced a new version of the popular Porta Pro headset. It's called the Porta Pro KTC, which stands for Koss Touch Control. It's aimed at all your iOS devices, and allows you to shuffle songs, adjust volume and make calls from a small controller built into the headphone cord.
The Porta Pro is an on-ear design, featuring a collapsible headband and a carrying case. Last time I listened to the Porta Pros I found the sound quite smooth and the headphones were very comfortable.
There is no price announced for the Porta Pros yet, but the current model without the controller retails for US$50.00. The KTC model is expected to hit stores in early Spring.