Ideal if you have multiple 1/4" mixers with multiple 3.5" cables (iPad, iPhone or Media) sending you a 3.5" stereo input. For example, I'm a drummer practicing 5 minute practice intervals that I have memorized, so I listen to a metronome and watch a video (cable TV) of me doing practice reps. These little guys are perfect for inputting into my drum studio mixer. Hope that helps.
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