JBL Charge 4 - Portable Bluetooth Speaker with built-in powerbank
JBL Charge 4 review: Worth the money, kind of - SoundGuys
How to Factory Reset and Troubleshoot JBL Charge 3 & 4 Audio Bluetooth Speakers - YouTube
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