The UX is simple and effective, I just have to create the awareness at the venue through the mic , and vuola !
The settings of the event are key to deliver a smooth ride to the end user, also the shout feature is priceless for us DJs.
One thing that works for me is to go to settings > brightness and display > auto lock > never.
Then I just place my phone in front of me with the app opened and wait for requests to pop up.