JBL Boombox 4

JBL Boombox 4

Meet the JBL Boombox 4—a go-anywhere powerhouse built to deliver room-shaking bass, clean highs, and serious volume without losing clarity. With AI Sound Boost, the Boombox 4 analyzes your music in real time and automatically optimizes output for more impact and less distortion, even when you crank it up.

Designed for outdoor life, it’s IP68 waterproof and dustproof, so beach days, pool splashes, and dusty hangouts aren’t a problem. When the party needs more coverage, Auracast™ lets you stereo-pair two Boombox 4 speakers or link multiple compatible JBL speakers to play the same vibe across a bigger space.

Battery life is built for long sessions: enjoy up to 28 hours, plus up to 6 extra hours with Playtime Boost (usage depends on volume/content). Want to fine-tune the low end? Switch between Deep Bass and Punchy Bass modes to match the mood. And for listeners who care about detail, you can plug in via USB-C for lossless audio playback (requires compatible source/content).

Key features

• AI Sound Boost for louder, cleaner sound at high volume

• Up to 34 hours total playtime (28 hrs + Playtime Boost up to 6 hrs)

• IP68 waterproof & dustproof

• Auracast™ multi-speaker connection & stereo pairing

• Two Bass Boost modes: Deep Bass / Punchy Bass

• Lossless USB-C audio playback

• Bluetooth 5.4, 3-hour charge time, replaceable battery (sold separately)