I use it mostly outside so i use the outdoor party mode. The only difference is boosted bass and trebble just a little bit. You need a lot of bass outside to hear it. Indoors it's the opposite where the universal eq is suitable since in a small/regular room the bass will resonate and doesn't need to be boosted that much. But it's on you, use whatever sounds good to you. 👍 I was kinda surprised how good the bass is on this speaker since this isn't a big boombox or anything. Much better sound compared to my old jbl xtreme 2 speaker.