Play and Charge Endlessly 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 7800mAh 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. Wireless Bluetooth Streaming Wirelessly connect up to 2 smartphones or tablets to the speaker and take turns enjoying powerful sound. 20 Hours of Playtime Built-in rechargeable Li-ion 7800mAH battery supports up to 20 hours of playtime and ch