JBL Charge 4 - Portable Bluetooth Speaker with built-in powerbank
User manual JBL Charge 4 (English - 20 pages)
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 Troubleshooting - iFixit
JBL Charge 4 - Portable Bluetooth Speaker with built-in powerbank
JBL Charge 4 review: Worth the money, kind of - SoundGuys