A lot of music streaming services boast different bit rates to make their service more appealing than the next. Spotify, Beats Music, and others even boast up to 320 kbps over cellular. It eats a heck of a lot of data but for audiophiles, good audio quality while streaming music is a must. Unfortunately in my experience, mileage greatly varies from what's actually advertised. So if you're curious what your service really is streaming over cellular, here's how to find out right from your iPhone!