Introducing the JBL Charge 4 Portable Bluetooth Speaker with full-spectrum, powerful sound and a built-in power bank to charge your devices. Delivers powerful, ear catching JBL sound Dual passive radiator Built-in Bluetooth connectivity IPX7 rated waterproof design 3.5mm audio jack Up to 20 hours of playtime The JBL Charge 4 Portable Bluetooth Speaker features a proprietary developed driver and 2 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 and IPX7 waterproof rated exterior. Wireless Bluetooth streaming Wirelessly connect up to 2 smartphones or tablets to the speaker and take turns enjoying powerful sound. Durable fabric and rugged material The durable fabric material and rugged rubber housing allows your speaker to outlast all of your adventures. JBL bass radiator Dual passive radiators deliver powerful, ear catching JBL sound that resonates loud and clear. IPX7 waterproof Take Charge 4 to the beach or the pool without worrying about spills or even submersion in water. Up to 20 hours of playtime Built-in rechargeable Li-ion 7500mAh battery supports up to 20 hours of playtime and charges your device via USB port.