[. . . ] [. . . ] The GHP-03B has a rotational clip-on hook to fit different size ears and keeps your hairstyle free from any headband. The GHP-03B has improved drivers that bring crystal sound and enhanced bass entertainment. The retractable cord eliminates any tangles and keeps the headphones compact for easy portability. Plus the extra extension cable provides more freedom to MP3 players, CD players, PC or any sound device. [. . . ] [. . . ]