Breakthrough chamber amplified design to bring powerful bass‎;‎high‎-fidelity stereo loudspeakers let the music distinct and show the detail of sound perfectly‎.‎ High quality microphones with noise cancellation technology which can cuts out most of the ambient noise‎,‎ making higher quality and clearer telephone calls‎.‎ The shell of in‎-ear headphone isolates outside noise interference effectively‎,‎ the noise suppression technology to improve the quality of music‎.‎ Double air inlets reduce the influence of reflected sound to the diaphragm when headphones vibrations extrude the air in the chamber to bring you a more pure listening effect‎.‎