6U blue copper rings speakers?? super clear vocie.Bass pure?? high pitched</br>High quality microphone?? clear voice calling</br>Have the answer / hang up button?? easy to use</br>Comes in Plastic Hard Case</br></br>Product Description</br></br>The headset is round line?? the length of 1.2M. Remote control function: On / hang up one button. This earphones also work with android phones?? but the volume control may be not work.</br><br/>http://www.amazon.com/gp/product/B01FHYOP5Y