JBL Charge Essential LIKE Charge 4 Bluetooth Speaker, OPEN BOX | Accessories4less
Super easy way to open any jbl charge port. Use a $4 lego pry tool and use the skinny end as well as pushing a light amount of force into the tab
Amazon.com: Silicone Case Cover for JBL Charge 3 Waterproof Portable Bluetooth Speaker, TXesign Travel Carrying Case Protective Cover Rubber Pouch with Shoulder Strap (Black with Shoulder Strap) : Electronics