The XLR inputs are designed to work with microphones and other Lo-Z sources, and the phantom power switch enables you to use condenser microphones by delivering 48v phantom power to the XLR inputs (Channels 1-4; 5-8). M-Track Eight also has two conveniently located inputs on the front panel that can be switched to allow instrument-level signals, so you can plug your electric guitar or bass directly into M-Track Eight and start recording. The item "M-Audio M-Track 8 High-Resolution USB 8 Input Audio Interface" is in sale since Tuesday, February 5, 2019.This item is in the category "Musical Instruments\Pro Audio Equipment\Audio/MIDI Interfaces". The seller is "wunjolondon" and is located in London. This item can be shipped to United Kingdom.