<p>The JBL Xtreme 4 portable waterproof speaker delivers next-level massive JBL Pro Sound with amazing dynamics, thanks to two powerful woofers and two tweeters. Dual pumping JBL passive radiators give you deeper bass that moves you. It offers 24 hours of playtime, and the handy shoulder strap makes it easy to spend some of those outside, where the rugged bumpers and IP67 waterproof and dustproof rating mean even a dunk in the lake won’t stop the fun.</p><ul class="a-unordered-list a-vertical a-spacing-mini"><li class="a-spacing-mini"><span class="a-list-item">Next level massive JBL Pro Sound: Two woofers, two powerful drivers and dual pumping JBL Bass Radiators effortlessly deliver dynamic, immersive sound with deeper bass and plenty of detail. You’ll get lost in the music wherever you are.</span></li><li class="a-spacing-mini"><span class="a-list-item">24 hours of playtime plus 6 hours with Playtime Boost: Take the JBL Xtreme 4 with you anywhere indoors and out. You can play your music all day long before you’ll need a recharge. Tap Playtime Boost to add up to 6 more hours to your battery life.</span></li><li class="a-spacing-mini"><span class="a-list-item">Convenient shoulder strap: The speaker can be carried on the shoulder or can be adjusted as crossbody, whatever your style or the mood.</span></li><li class="a-spacing-mini"><span class="a-list-item">AI Sound Boost: AI Sound Boost analyzes the incoming signal and uses an AI algorithm to predict the speaker movement and power response. The driver is pushed to its max capability creating a dynamic range and more powerful sound.</span></li></ul>