If you are wondering how is the DJ studio looks like, you no longer need to visit the radio station personally. Nowadays, with all the social media online, some of the radio station will broadcast their show live on their website. From there, you can see how they are working and how they are controlling all the mixer in front of them. I am not sure which brand of mixer the radio station is using, maybe djm 350 is one of them? Anyway, all the sound effects that you heard through the air are coming from the mixer. A DJ needs to skillfully controlling each and every single of the button, to make sure they are pressing the right button during the show.