A no compromise, high-performance noise-isolating headset that delivers best-in-class benefits and superior value, perfectly matched to the latest product innovations from Apple that support a 3.5mm, 4-conductor stereo phone plug. The hf3 features a close-proximity microphone with Apple 3-button control. Hf3 headset for iPod, iPhone and iPad users, all models Best-in-class accuracy, noise isolation, fit, durability Exceptional audio clarity 3-button remote offers great functional control capabilities Can be used with AWARENESS! For Etymotic app to allow you to hear louder-than-normal background noise thru your earphones *This product is Re-certified. A re-certified product is one that is returned by a customer, for whatever reason, and then restored to original working condition after undergoing an intensive inspection process by qualified technicians. The re-certified product is then offered at a substantially discounted price. All stock of our current products are guaranteed to be in working condition and have been successfully tested for optimal performance. 7 day return policy is in effect for both in-store and online purchases. See in store for more details.