Introducing the JBL charge 4 portable Bluetooth speaker with full-spectrum powerful sound and a built-in power bank to charge your devices It Features a proprietary developed driver and two JBL bass radiators that intensify sound with strong deep bass Its high-capacity 7500mAh rechargeable li-ion battery provides up to 20 hours of playtime The speaker carries a convenient USB charge out to quickly charge your devices such as your smartphone so you will never run out of power again The charge 4 features a rugged design IPX7 waterproof rated exterior and comes in a suite of cool colors Together with JBL connect+ it can wirelessly link more than 100 JBL connect+ enabled speakers to elevate your listening experience