It's time to live loud! The JBL Xtreme 4 portable waterproof speaker delivers next-level massive JBL Pro Sound with amazing dynamics, even at top volume, thanks to two powerful woofers and two tweeters. Dual pumping JBL passive radiators give you deeper bass that moves you. Want to take your music outside? The handy shoulder strap makes it easy, while the rugged rubber bumpers and IP67 waterproof and dustproof rating mean that a sudden downpour or a dunk in the lake won't stop the fun. When it's time to create an even bigger audio experience, pair two Xtreme 4s for stereo sound. Or for your next party, use Auracast to connect the Xtreme 4 with any compatible JBL portable speakers, so your friends lounging poolside will vibe to the same playlist as the ones chatting indoors. 24 hours of playtime and a convenient power bank for your device mean you won't have to recharge until morning. All this, plus it's made with recycled plastic and recycled fabric. The JBL Xtreme 4 brings thrilling sound with you—everywhere. Next Level Massive 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. Up to 24 Hours of Playtime With a 6 Hour Boost Your listening adventures can last all day long. Take the JBL Xtreme 4 with you from room to room, out to your backyard party, or off to the beach. With up to 24 hours of battery life, you can play music 'til the sun goes down—and comes back up again—before you'll need a recharge. Simply tap Playtime Boost to prolong the playtime, adding up to 6 hours to your battery life. It tunes and optimizes the performance for louder and crisper sound. Convenient Shoulder Strap The speaker can be carried on the shoulder or can be adjusted as a crossbody, whatever your style or the mood. It also features a built-in bottle opener Multi-Speaker Auracast Connection Want even bigger JBL Pro sound? Stereo pair two Xtreme 4s for a wider sound stage. For your biggest parties, connect multiple JBL speakers wirelessly using Auracast. Enjoy further connectivity with PartyBoost enabled speakers. Power Up Don't put the good times on pause. The JBL Xtreme's built-in powerbank lets you charge your devices without taking a break from the music. Replaceable Battery Get even more out of your speaker and extend its lifespan with a replaceable, rechargeable battery. Replacements not included. Fast Charge Need a quick boost to see the party through? Ten minutes on the charger earns you another two hours of music. JBL Portable App Use the JBL Portable app to receive updates, get product support, and unlock features, all straight from your phone. Fine-tune your sound with multiple EQ presets options. Or use the fully customizable equalizer to adjust highs, mids, and lows—so your music is just right for you. Made Partially With Recycled Materials The JBL Xtreme 4 incorporates post-consumer recycled plastic and fabric for the speaker grille. It's also packaged in FSC-certified paper printed with soy ink.