This TC28i Lightning male to USB-C female adapter will allow you to convert the Lighnting connection of an Apple device to standard USB-C. You will be able to use, for example, USB-C headphones or USB-C decoders.
ddHiFi TC28i Pro OTG Lightning to USB-C plus Power Adapter
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ddHiFi TC28i Pro OTG Lightning to USB-C plus Power Adapter
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ddHiFi TC28i Pro OTG Lightning to USB-C plus Power Adapter