Designed from the ground-up to meet the rigorous needs of the athlete and perfect for any active listener, UltraFit sports headphones will be the last headphone you'll ever need to buy.The UltraFit 1000, now offered in both iPod®/iPhone® and Android® compatible models, is similar in design to the UltraFit 500 but with the added feature of a 3 button in-line remote control and a microphone. Like the UltraFit 500, the 1000 is designed to sit in the flange of your ear canal and provide a moderate noise suppression. Both versions of the UltraFit 1000 also come with a short (14") hassle-free and tanglefree cable for smartphone or MP3 sleeve and collar connections. The UltraFit 1000a is a middle-ear-flange design that sits comfortably within the outer part of your ear, and stays put even during rough play. The UltraFit 1000a features the convenient One-button in-line control & microphone, so you can use your Android-based device without breaking your stride.UltraFit 1000a Features:Ultra-high performance digital sound, focused details, full fidelity and deep bass.Convenient One-button in-line controls & microphone, for on-the-fly audio and phone control without breaking your stride.SecureFit support keeps your headphones comfortably in place.Ultra-flexible tangle-free planar audio cable eliminates cable tangle. Two easily-switchable custom lengths include a shorter 14-inch length.StrainGuardTM Kevlar core technology and computer-designed transitional connect