Etymotic Research ER7-MC3-GREEN MC3 Noise Isolating In-Ear Headset and Earphones for iPad, iPhone, iPod Touch (Green) (Discontinued by Manufacturer) Made for Apple iPod, iPhone and iPad(TM) control functionality. 3-button micro-control pod with close-proximity high sensitivity microphone for easy control Special driver design allows more compact size for greater in-ear comfort. Tight, accurate bass with crystal clear high frequency detail at all listening levels. 85%+ response accuracy--most accurate sounding noise-isolating ear phones in this price class High degree of noise isolation enables lower-volume listening, protects hearing. An assortment of noise-isolating ACCUFit eartips options to ensure proper seal and comfort