The XLR-101A is a high-performance 3.5mm - XLR audio signal converter designed to transform line-level signals from various audio devices into microphone-level balanced signals. Suitable for use with laptops, MP3 players, CD players, smartphones, and tablets, it provides clear audio by summing the left and right channel signals to output a balanced signal. The device features a GND LIFT switch that effectively eliminates ground loop noise, ensuring pure audio signals and allowing users to optimize audio quality in different grounding environments.