High quality stereo sound Comfortable wear Good ABS material ... WAV original sound decode. 5.Headset function: Take wheat audio line (select) connects headset and PC mic port, you ... light flash, needs to recharge, after flash 1 min,headset shut off auto. Charging, red light keeps flashing, ... button, it shut off auto after 30s8.OEM are welcome High quality&best computer headset with TF card function