The UHS301 stereo headset from Altec Lansing allows you to listen to music and take phone calls on your music-enabled cell phone. Compatible with most music players and cell phones, the headset features a gold-plated 2.5 mm audio plug with a 3.5 mm adapter. The headset offers a built-in microphone with a call answer/end button and a volume control with a mic mute switch for convenient control. The SnugFit design ensures a comfortable fit. Large, high-power neodymium drivers provide excellent sound quality and the cloth-covered cable helps to minimize tangles. And the included neoprene carrying case provides convenient storage. Whether you're running or jogging, traveling on a plane, train or subway, get all your music and all your calls and stay connected in comfort. It is iPhone Compatible & Works with iPod and most MP3 Players.