Plug in your favorite guitar and turn your PC or Mac computer into a guitar amp and recording system without the need for any other hardware. Stereo headphone output lets you jam with your compute and can also be used for monitor with active monitor speaker. Works directly with PC or Mac computer, ultra low latency driver for PC included. High quality components and exceptionally rugged construction ensure long life. Variable speed file playback function for MP3. WAV, AIFF audio files, perfect for easy learning and practicing. USB bus powered, requires no external power. Easy plug and play installation.