■ streamlined shape， color calm， showing extraordinary high texture. ■ superior stereo sound， providing a clear， powerful bass. ■ cortex widening headband， wear comfortable no pressure. ■ retractable headband， wear more obedient， more comfortable. ■ ultra-soft ear pads and meticulous， long-term use also comfort. ■ anti-curl flat wire， durable. ■ remote control to adjust the volume， use more convenient. ■ Internet telephony， video conferencing， interactive video games， multimedia applications， communications equipment， network chat， all language learning Be applicable.