Néw Idea or suggestion

I would like to suggest apple to develop the hardware or iPhone which can play 2 separate audio at a time through 2 different applications. Let say I want to play nursery rhymes for my kid so I could play on speaker but for my send if I would like to play Netflix over headphone.
you may say use 2 different devices but that is easy and this will be great feature for people who have one device.
Néw Idea or suggestion
 
 
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