Designed for audiophiles' favorite Apple products, the S4i comes with a three-button control and mic, allowing you to control the concert and your phone calls. Klipsch's award-winning drivers deliver a full range of frequencies, allowing you to experience your favorite artists like never before. And with the S4i's comfortable design and durable structure, you can play your passion endlessly. Klipsch's patented oval ear tips naturally fit the contours of your ear canals, providing a secure fit and comfortable long-term wear. The S4i's audio works with virtually any device that has a standard 3.5mm headphone jack and features an Apple-based mic and three-button remote for taking calls and controlling music on iPods, iPhones or iPads.