Glensound GS1U-028B High Quality 10 Channel Line IdentLine identification units are often used in busy studios to record an audio message on a circuit, then playing it back on a loop. The GS1U 0288 provides 10 independent line idents,that allow each circuit to be identified by just listening to the pre recorded message. The GS1U 0288 also provides a 1kHz tone at Od8 to allow correct audio level setting. Features 10 independent line identification circuits Each circuit records up to 20 seconds of message