Spouse bringing phone to family reading time

Dear Nicholeen, I hope you are well. How could I communicate to my husband in a kind, but clear manner that I would prefer that he doesn't scroll through his phone while I read aloud to the family in the evenings. It makes me feel disrespected and it seems inconsiderate. I have mentioned to him a few times (2-3) in the past, but he gets defensive and says that he is perfectly able to pay attention to the reading while he also reads on his phone. In fact, that due to his ADHD he can pay even more attention to my reading while doing something else (the phone), and that if he would only listen without doing anything else, then his mind would wander and no longer pay attention to the family reading. Whenever I had asked him not to bring it, he would reluctantly not bring it one or two times, but then he would bring it again. I don't want to sound like a nagger, so I don't ask him every time, but it does bother me and it's discouraging. He does have a rebellious spirit, so I feel that he immediately opposes whatever I ask him to do. Thank you in advance for your insights.
On a positive note, he appreciated your advice and tools to help him calm down his mind, as it seems to always run like an engine. He says you're awesome, and that you are the female practical Jordan Peterson :o)