JBL Boombox 4: Powerful Portable Waterproof Speaker with AI Sound Boost

Elevate your sound anywhere with JBL Boombox 4

Designed to be bigger, bolder, and more capable, the Boombox 4 blends JBL Pro Sound with intelligent tuning. Two larger woofers, two tweeters and three passive radiators deliver a louder, clearer balance across genres, from deep bass lines to crisp highs.

AI Sound Boost analyzes the music in real time and adjusts output to deliver more power with less distortion, even at higher listening levels. This dynamic processing helps preserve detail as the volume rises, making every track feel more immersive.

Real-life moments, amplified

• Deep or vibrant Bass Boost modes let you tailor the vibe to your mood, whether you want a warm hug of bass or a punchier rhythm.
• Two bass modes offer versatile listening experiences without needing extra gear.
• Optimized speaker layout with larger woofers and radiators translate studio productions into room-filling sound.

Portability is reimagined: bigger yet lighter, so you can take it to the beach, park, or backyard parties with ease. The redesigned chassis balances presence with manageability for on-the-go listening.

Durability and weather resistance keep the party going rain or shine: IP68 waterproof and dustproof protects against splashes and dust in outdoor settings.

We also focused on thoughtful construction details, like a sturdy handle and grippier edges, so carrying the Boombox 4 feels confident in diverse environments.

Group listening and flexible setups

• Auracast multi-speaker connection makes it simple to share the mood—pair two Boombox 4s in stereo or connect multiple Auracast-enabled JBL speakers for broader coverage.
• Lossless audio playback via USB-C provides a higher-fidelity listening option when your source supports it.

Power for longer adventures: up to 34 hours of playtime on a single charge, with Playtime Boost offering extra runtime when needed. An easily replaceable battery offers additional longevity (battery sold separately).

Materials and packaging reflect a lighter footprint: recycled plastic and fabric for the grille, FSC-certified paper packaging, and soy-printed inks. The design demonstrates a balance between performance and responsibility.