Music/sound output to headset and BT headset at the same time

Hi guys, my question is simple but I didnt find any answer... I travel alot with my girlfriend and we would like to listen to the same music from one device. Normally we use a y-cable but my headphones are very cheap and so I ask about a way to stream the music to BT headphones and for the normal headphones at the same time. Maybe with xposed or viper? :confused:

Thank you!!!

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