Get the most out of your speaker. AI Sound Boost analyzes the incoming signal in real time while simultaneously using an AI algorithm to predict loudspeaker movement and power response. It pushes the driver to its maximum capability, fully exploiting the dynamic range for better and more powerful sound. It also reduces distortion even at high volume, maximizing the bass output and overall loudness.

The JBL Xtreme 4's IP67 waterproof and dustproof rating ensures this portable speaker can handle almost any environment, from a poolside party to a seaside picnic.

Want even bigger JBL Pro Sound? Stereo pair two Xtreme 4’s for a wider sound stage. For your biggest parties, connect multiple JBL speakers wirelessly using Auracast. *The Xtreme 4 can also connect with PartyBoost-enabled speakers

Don't put the good times on pause. The JBL Xtreme 4's built-in powerbank lets you charge your devices without taking a break from the music.

Want even more life out of your speaker? Extend the lifespan of your speaker by replacing the rechargeable battery.
*Replaceable battery sold separately
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Need a quick boost to see the party through? Ten minutes on the charger gets you another two hours of music.

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.

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.