The JBL Flip 4 became available in early 2018. This popular Bluetooth speaker rapidly gained a following for its impressive sound and lightweight design. It remains a top choice for music lovers worldwide. Diving into the JBL Flip 4: Features and Specs The JBL Flip 4 reviewJBL Flip 4 vs Flip 5 Boom Flip 4 is a portable Bluetooth speaker that pack