... full speed interface, plug and play, instead of traditional sound card;2 ,full support WAV / MP3 / WMA/MPEG1 ( ... 0, HRTF 3DX function;4, multi-channel technology, highly dynamic virtual 5.1 channel sound;5 ,digital buttons ... interface, plug and play, instead of traditional sound card;Microphone recording function;Kara OK function;Multi-channel ... interface devices, plug and play USB5.1 sound card