I’m so vocal, could have worked at T-Mobile
Cause I got so many bars
I could probably sell cells

from XV (Ft. Colin Munroe) – Best Is Yet To Come Lyrics on Rap Genius

T-Mobile is a cell phone company that works with affordable data, prepaid plans, etc. Cellphones can make calls with strong signals which is shown through a set of bars.

Vizzy, with excellent bars of his own, could work at a cell phone company if he wanted to.

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