The JBL Xtreme Bluetooth speaker delivers an even bigger immersive stereo sound. With four improved drivers and two pumping JBL bass radiators, the Xtreme 3 is guaranteed to rock the party. The powerful sound comes with an eye-catching logo design and an upgrade of the handy carrying strap. Waterproof and dustproof, the JBL Xtreme 3 will make a big splash wherever you go.Packed with a long battery life, the JBL Xtreme 3 keeps the good vibes going all day and into the night. The built-in powerbank charges your devices so you never have to put the party on pause. When the crew gets going, effortlessly connect up to two smartphones or tablets to the speaker and take turns enjoying massive JBL Pro sound. With the PartyBoost feature, pair two JBL PartyBoost-compatible speakers together for stereo sound. True party pros can link up to hundreds of JBL PartyBoost-compatible speakers to truly pump up the jam!