How to Bass Boost JBL Charge 4 Speaker - Tom's Tek Stop
JBL Flip 4 Review | The Master Switch
jbl charge 4) the speaker doesn't make any sound not even the little on/off chime. i tried connecting via aux and it still didn't work. also, the battery life indicator is on
JBL Charge 4 review | TechRadar
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JBL Charge 4 review: Worth the money, kind of - SoundGuys