audio settings on iPad Pro

Hi everyone,

recently I've decided to use my new iPad Pro to record a podcast, exploiting the new set of built-in microphones.

however I'm facing a problem: usually I record with my Bose QC35II, but if I connect them to the iPad, it recognizes them as microphone, but I want to use the built-in ones.

is there a way to set as audio input the built-in microphones and as audio output the headphones (as I could do with my MacBook Pro)?

thanks a lot