The Zoom U-22 is a sound card that has all the most important functions for recording and live performances despite its incredibly low price. You can record with a microphone, your guitar, bass or keyboard. The input is both for xlr connectors and teleplugs. The U-22 has phantom power so you can use a condenser microphone. There is also a line input - line in - where you can connect an iPad or smartphone. Connect the U-22 to your computer's USB port using the supplied cable.