The JBL Charge 4 portable Bluetooth speaker has full-spectrum sound and a built-in power bank to charge your devices. It features a driver and two JBL bass radiators that intensify sound. Its high-capacity 7500mAh rechargeable Li-ion battery provides up to 20 hours of playtime. It carries a convenient USB charge out to quickly charge your devices. The Charge 4 features a IPX7 waterproof rated exterior and comes in cool colors. Together with JBL Connect+ it can wirelessly link more than 100 JBL Connect+ enabled speakers to elevate your listening experience.