Bass and Treble adjustments in app. Inconsistent quality between the different colors of these shoes. When connecting to my phone it freezes and says it’s connected but never connects. Other than these cons, I really like the speaker. They’ve sat for hours making jewelry and enjoying some quiet time together. I bought these to replace the exact same pair I used for years and abused, not realizing they were mens. Both have EXACTLY the same issue so I suspect this will affect all Alloy Core RGB keyboards at least. However, I have owned 3 pairs of these and every time the left headphone stopped working after a few months. My old pair broke after many years of daily wear. If youre just a normal sound snob, like me, then these headphones are definitely "good enough", as in they sound good and there is enough clarity to hear everything in any given track.