SHENZHEN BASSWORLD Ko-Star is committed to designing and producing high quality and stylish headphones. We care about every detail from moulds to finished products to make the sound pure and clear as nature. brbrMusic is Sans Frontieres. As long as we started headphone business> we believe we are not only producing headphones but the connection of humanity. By this point of view, our headphones designer offer the most natural and comfortable wearing and in principle, environment protection.br