Monoprice Large-Driver Earbud Headphones - Black with in-line Microphone and Control for Apple iPhone iPod Android Smartphone Samsung Galaxy Tablets MP3 Large Drivers: Don't settle for earphones with 8mm or 9mm drivers. The large 11mm drivers in these earphones allow them to move more air and respond more quickly to frequency changes across a wider spectrum. In-Line Mic/Controller: The in-line module includes a microphone for hands-free phone calls and a controller which allows you to pause or start playback and skip audio tracks. Lightweight & Durable: The lightweight metal alloy enclosures are easier to keep in your ears and are more durable than the typical plastic types. They also allow the sound to resonate and build volume naturally before it reaches your ears. You're never on your own with Monoprice products! We have a full team of friendly and knowledgeable technicians available to answer your questions both before and after the sale. Not to be outdone our friendly and helpful customer service team is here to make your ordering delivery and any possible returns a quick and painless operation from start to finish!