Here;s that I am using...
Topping MX3
https://aoshida-audio.com/products/topping-mx3
Lightning to USB Camera Adapter
https://www.apple.com/shop/product/MD821AM/A/lightning-to-usb-camera-adapter
iPhone 12 Mini
https://www.apple.com/shop/buy-iphone/iphone-12/5.4-inch-display-64gb-black-unlocked...