JBL Boombox 4: Most Powerful Portable Speaker with Pro Sound, 34 Hours Playtime, Auracast, Purple

Powerful sound anywhere

The JBL Boombox 4 redefines portable party sound with Pro Sound and AI Sound Boost. Its redesigned driver array combines two larger woofers, two tweeters, and three passive radiators to deliver a broad, loud stage with deep bass and crisp highs. AI Sound Boost analyzes your music in real time, optimizing balance to maintain power and clarity as you raise the volume—so the mood stays energetic without harsh distortion.

• Massive JBL Pro Sound with real-time AI optimization
• Expanded driver array for clearer mids, highs, and deeper bass
• Two Bass Boost modes to match your vibe: Deep Bass and Punchy Bass
• Design upgrade: bigger, but lighter for easier transport
• IP68 waterproof and dustproof build for outdoor use

When you want to tailor the low end, the Boombox 4 lets you switch between Bass Boost modes. Deep Bass pushes a resonant foundation that fills spaces, while Punchy Bass tightens the rhythm for energetic tracks. The combination of a bigger chassis and lighter weight makes it easier to take the party with you, whether you’re at the beach, on the block, or in the backyard.

• Up to 34 hours of playtime on a single charge
• Playtime Boost can add up to 6 extra hours for longer sessions
• Auracast multi-speaker connection for shared sound across spaces
• Lossless audio playback via USB-C when your source supports it

With potential for long listening sessions, the Boombox 4 is designed to keep the momentum. The battery plan aims to cover extended gatherings, while the USB-C port opens up options for higher-fidelity listening when the content source supports lossless formats.

Built to roam, built to last

The Boombox 4 is weather-ready and rugged enough to handle outdoor adventures. Its larger yet lighter form helps you move it between spots without fatigue, so the party can follow you from the beach to the driveway with ease.

Share the vibe with Auracast

Auracast enables stereo pairing of two Boombox 4 units or linking multiple compatible JBL speakers, so everyone hears the same playlist with coherent coverage across larger areas.

Color, care, and convenience

The purple variant adds a bold accent to any setup while delivering solid performance, from quick beach sessions to backyard hangouts.