Skullcandy Strum Maximum Comfort Earbud with Universal In-Line Microphone and Remote, Supreme Sound Acoustics, Flexible Design To Match All Ears, Tug and Pull Resistant, Street/Black Flexible design for comfort: many people's ear canals differ more in directionality than they do in size. That's why our brix tech uses A flexible design to adjust to the natural direction of your ear canal for the perfect fit. Noise-isolating fit: Step up in comfort with our off-axis tech. Instead of a perfectly round and straight nozzle, which doesn't match your ear shape, off-axis uses an angled and oval-shaped design for improved comfort and better noise isolation. Hold in place: never again experience the irritation of earbuds that just won't stay put. Our fix tech utilizes a hook-shape design that resists tugging and pulling, keeping your earbuds in place. Universal mic and remote: if you've ever Bought an earbud or headphone that turns out to be incompatible with your smart device, or doesnt have full device functionality, then you know why we are so excited about our universal mic and remote with volume control. This three-button mic is compatible with virtually any smart device. Supreme sound: strum are custom-tuned to deliver powerful attacking bass, warm natural vocals, and precision highs.