RapcoHorizon LTIGLBLOX 3.5mm to XLR InterfaceLTIGLBLOX 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