Have you ever noticed that even after upgrading to some of the best high-end headphones, they still sound just fine despiteflagship hardware? Wavelet OS Android Price model Free (with in-app purchases) Wavelet is a powerful, system-wide audio equalizer for Android that improves headphone sound quality. This house-sound profile boosts the bass to make pop music more fun, or rolls off the treble to hide cheap components or make headphones sound more "lively". Ideal for anyone who cares about better sound. I didn't realize my headphones could sound this good until I used this app.