Logitech 982-000079 UE 6000 Headphones - Black (Certified Refurbished) This Certified Refurbished product is factory refurbished, shows limited or no wear, and includes all original accessories plus a 90-day warranty UE Sound Signature: Pure, undiluted audio with a wide-open soundstage that's rich, clear and perfectly tuned Active noise cancelling technology: Filters out ambient noise for an immersive listening experience Sumptuous around-the-ear comfort: Plush memory-foam cushions, soft-as-leather surfaces and adjustable headband for a perfect fit On-cord music/call controls and mic: Adjust volume, pause, answer/end calls without touching your smartphone or tablet. (Functionality may vary on non-Apple devices.)