V-moda Remix 4S Sport In-Ear Headphones with Mic, Red-Black Remix 4S is compatible with all iPhones, iPad, iPod and Android powered smartphones, tablets and other audio/mp3 devices. Critically tuned 9mm V-MASQUE high definition dynamic driver offers absolute clarity alongside the perfect balance of vibrant bass V-PORT air flow system delivers a high-definition sound stag BLISS 2.0 ear fittings reduce outside noise and enables deep punchy bass - The Remix 4S comes with an integrated 1-Button remote and microphone that lets you control music, playback, Voice control and phone calls. The Remix 4S also comes with a PC adapter that makes it perfect for VoIP and Skype calls The Remix 4S comes with V-MODAs patented ACTIVE FLEXsport ear hooks that keep your ear phones in position even during a walk, jog, run. Specifications Frequency Response: 5 Hz - 24 kHz Speaker Driver: 9mm V-MASQUE dynamic technology, neodymium rare earth magnet Cables: Kevlar reinforced, 32" plug to y-connector, 13.5" even-length earphone cables Plug: 45-degree, 24k gold-plated 3.5 mm (1/8") stereo plug Weight: 17g