The HamiltonBuhl HBSKB earbuds are pre-wrapped in a Skooob, and stays tangle-free no matter what you do to them - bunch them, wad them, or stuff them. Exclusive Skooobed HBSKB earbuds are kink-free and are perfect for music, classroom instruction, or any other listening activities. These always hassle-free and durable earbuds feature a sculpted in-ear design, comfortable foam ear cushions, and a 4' cord.