Made to be the most powerful, portable Bluetooth speaker, JBL Boombox delivers monstrous sound along with the hardest hitting bass. Enjoy music for 24 hours without missing a beat. It even allows you to charge up to 2 external devices at the same time with the dual charge out. Connect more than 100 JBL Connect+ enabled speakers with one button to rock your party. Switch between indoor and outdoor modes to optimize sound wherever the party is. The Boombox is IPX7 waterproof so it can withstand any weather and the most epic pool parties.