2 Inch 55mm Full Range Bluetooth Speaker 4ohm Neodymium Portable Speakers Foam Side For Charge 3 Speaker Replace Diy 5w-10w 2pcs - Speakers - AliExpress
Khron's Cave: #48 JBL Charge 3 Bluetooth speaker teardown
2X Micro USB Charging Port Replacement for JBL Charge 3 Bluetooth Speaker