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This link cable is used to connect a device with a female jack 3.5 to an headphones with a sound input, speakers, an amplifier, or an intercom ...
The connecting cable is used to connect a device with a female jack 3.5 to an headphones with a sound input, speakers, an amplifier, or intercom... You plug on one side, the headset or the music aviation intercom and on the other side your audio source.
Both ends are with jack 3.5 mm