The Line 6 Sonic Port VX Audio Interface is a compact device that can be carried around easily, so you can record songs wherever you go. It sports analog in and out ports to connect other devices to it. You can also plug in a pair of headphones, using its headphone jack. It has a port for your guitar and offers a dynamic range of 120 dB. For added convenience, this audio interface features a USB audio port. To record your songs with clarity, it is equipped with built-in mics.