JBL Boom Box Most-Powerful Portable Speaker

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. Imagine playing with your favorite beats from sunrise to sunrise on a single charge. Use the massive 20,000mAh battery and dual charge out to charge your external devices anytime and keep music rocking.