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Koss iSpark In-Ear Headphones feature an in-ear design with memory foam ear cushions that provide a custom fit by molding to your ear. The in-line microphone and push-to-talk button makes the iSparks ideal for use with any Smartphone. Instead of having to take out your headphone to answer a call, simply press the talk button and seamlessly transition from music to a phone call. The headphones feature a convenient long 4.0' cord and a carrying case so you can easily take them with you wherever you go.