Attention: Burton Snowboards & Gear can be shipped only within the United States and Canada. Description of R.E.D. Subwoofer Ear Pad Accessory Burton packed every Skullcandy™ Skullcrusher feature into an ear pad. Just pick your Quick Clip&trade-compatible R.E.D. helmet and snap them in. Features: Skullcandy™ SkullCrushers Amplified Dual Speaker Bass System Adjustable on Cord Compatible with any iPod®, MD, CD or Tape Player One-Touch Mute and Electronic Volume Control on Ear Pad Quick Clip II™ Mechanical Ear Pad Compatible