SaiTech IT 2 Pack USB 2.0 to 3D Audio Sound Card Adapter Virtual 5.1 Channel - Blue Supports 3-dimensional sound; Virtual 5.1 sound effects Compensates any desktop speakers with short 3.5 mm cable Instantly creates a microphone in and audio jack out from any PC USB port No External Power Required - Fully Powered By USB,USB2.0 full speed interface plug and play, instead of traditional sound card; 2 .full support WAV / MP3 / WMA/MPEG1 (VCD) / MPEG2 SVCD) / AVI/DVD_Audio/DVD_AC3/DVD_DTS/DiVX format files 1 Year Warranty Instantly creates a microphone in and audio jack out from any PC USB port Line out for speakers / headphones - Line in for microphone [Multi-System Compatibility] - for some PC or Laptop models without microphone input; Functions as an external USB to Mic card to add a mic connection to a PC or Windows laptop with only one 3.5 audio port or no microphone input. [USB AUDIO ADAPTER] - converts a computer USB port into a sound card; Connect a headset or computer speakers to stream music in stereo; Connect a mono condenser microphone for Skype chat, voice recognition, amateur radio, or DJ controller applications [USB SOUND CARD REPLACEMENT] - for a failed audio card in a laptop; USB powered adapter requires no external power; Pair with a USB hub or a USB extension cable for a flexible installation; Convenient 2-Pack USB to audio adapter provides a spare to travel with your laptop. [Plug &amp; Play Easy to USE] - audio adapter with no external drivers required; Plug in the adapter, configure the sound settings on your computer and enjoy; USB powered adapter boosts the signal of your headset, speakers, or microphone [Excellent Features] - Supports 3-dimensional sound.Virtual 5.1 sound effects