had the USB-C to 3.5mm dongle but really annoyed me when I couldn't charge my iPad whilst still watching content with wired headphones. Found the perfect solution. Got myself a Bluetooth adapter for my wired headphones and so far it's great. It can be charged while using it and lasts up to 10 hours. Best part is I can charge my iPad whenever I need to. There's many options on Amazon but I got this one because it came with a clip. Most people get these to enable Bluetooth for their cars.
https://www.amazon.ca/gp/aw/d/B078VSM8M4?psc=1&ref=ppx_pop_mob_b_asin_image
https://www.amazon.ca/gp/aw/d/B078VSM8M4?psc=1&ref=ppx_pop_mob_b_asin_image
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