... full speed interface, plug and play, instead of traditional sound card;2 ,full support WAV / MP3 / WMA/MPEG1 (VCD ... interface, plug and play, instead of traditional sound card;Microphone recording function;Kara OK function;Multi-channel technology ... , dynamic 5.1-channel audio;Dynamic rotating sound field;Free headset and speaker mode switching function ... devices, plug and play USB5.1 sound card