The Y-SERT™ is a configurable audio interface adaptor that enables users to connect their audio equipment for use in a “Y”, "Stereo Split" or "Insert" format. Select any combination of Y-SERT™ Audio Connectors (sold separately) to properly mate to the audio equipment's inputs and outputs. Each Y-SERT™ Audio Connector screws onto the Y-SERT™ Interface to prevent accidental disconnection during use. Use the mode switch, located on the side of the case, to select the desired configuration required for use.