Music is a driving force in the game of many top athletes. And now it can bring out the best in yours. Powerbeats combines sonic superiority with a comfortable fit that won't quit. You'll hear full range sound with clarity and power, plus your surroundings. And an adjustable/bendable ear hook with flexible arm keeps Powerbeats securely in place, no matter how hard you play. Check out the Official Powerbeats by Dr. Dre website to see what Lebron James has to say about the power of sound.