Get the party started with the JBL PartyBox 520 Portable Party Speaker. This powerful speaker brings electrifying sound and vibrant lighting to every event. It's engineered with two 7.5-inch woofers and 1-inch dome tweeters that deliver deep, booming bass and incredibly crisp highs, filling any room with immersive audio. The innovative AI Sound Boost technology intelligently optimizes your music in real-time for rich, clear sound with minimal distortion at any volume.Built for endurance, the PartyBox 520 features a splashproof design for worry-free use near pools or outdoors. Its massive battery provides up to 15 hours of playtime, and you can swap it for a fresh one (sold separately) or get 2 extra hours from just a 10-minute quick charge. A built-in USB-C power bank even lets you charge your devices. With Bluetooth 5.4, you can connect wirelessly, link multiple devices simultaneously, and use Auracast™ to sync with other JBL PartyBox speakers for a massive sound system. Complete with a stunning light show and intuitive app control, the JBL PartyBox 520 is the ultimate companion for your next celebration.