Why do some airplane headphones have 2 Jacks instead of 1 everywhere else?

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Every time I go on a plane it is about a 50/50 chance between headphones with 1 jack or 2.

Why do some have 2 jacks? What is the function of it?

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8 Answers

Anonymous 0 Comments

3 bucks for headphones, or just the adapter. I know some airlines tried to rent the headphones and to be honest didn’t fly in US much back then more Europe Asia
The reason for two Jack’s was because if it was a normal 3.5mm socket, everyone would just take them

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