This cable with a USB-C male connector and a 3.5 male Jack plug will allow you to connect a device with a USB-C output to a source with a 3.5mm female
câble jack
usb c vers jack 3.5
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usb c vers jack 3.5
Audiophonics - Adaptateur USB-C Mâle vers Jack 3.5mm / USB-C Femelle, usb vers jack 3.5