JBL Charge 3 vs Charge 4: Is the Upgrade Really Better? – SelectoGuru.com
Amazon.com: Hard Travel Case Compatible for JBL Charge 3 BLKAM Waterproof Portable Bluetooth Wireless Speaker (Black). Extra Room for USB Cable and Charger : Electronics
JBL Charge 3 Review: A Capable Travel Speaker?
JBL Charge 4 review: Worth the money, kind of - SoundGuys