"We saw that the blows rap urban property, a higher level of prices," said Tim Hickman, which makes Fanny Wang headphones. It proposed the creation of similar headphones that appeal especially to women.

As such, Fanny Wang said "very young, urban, and the sound" was different from the times, too. In October, Monster Beats and settled their lawsuit against Fanny Wang, no money is exchanged, Mr. Hickman said.

Meanwhile, 50 Cent, born Curtis Jackson, is selling the headphones called Sync by 50. He says he got into the business of headphones, because he had "an interest in people listen to music the way you hear it in the studio." He is focusing on top quality wireless headphones that he says are superior to their competitors, including beats.

However, Mr. Jackson praised strokes and their owners. In fact, he said he would love to join forces with Beats, has released versions of their headphones Lady Gaga, P Diddy and Justin Bieber.

"It is now part of the culture. You are almost making a fashion statement," said Jackson. "For the price, which says something about the guy who has around his neck."