LTIGLBLOX is a consumer to pro interface. It converts input from consumer grade equipment (laptop computers, MP3 players, CD players) to a mic level balanced output. Ground lift switch. Gives operator volume control of the outgoing stereo signal. 3.5mm male input and XLR male output. Features Self-contained unit converts input from consumer grade equipment to a mic level balanced output Operator volume control of outgoing stereo signal 3.5mm male input and XLR male output Ground lift switch Perf