JBL Boombox 3 Portable Bluetooth Speaker, IP67 Waterproof, 24 Hour Playtime, Deep Bass and PartyBoost with Signature Power Bundle | Includes Signature Series 5000mAh Portable Charger and Adapters
JBL Charge 3 review, underwater test and tear down
JBL Charge 3 JBLCHARGE3BLKAM User Manual | ManualDevices.com