The JBL Boombox 4 is a high-power portable Bluetooth speaker built for massive bass, outdoor entertainment, and long-lasting wireless audio performance.

Designed for large gatherings and immersive music playback, it combines JBL Pro Sound, AI Sound Boost technology, rugged waterproof durability, and extended battery life in a portable carry-anywhere design.

Perfect for:

• Outdoor parties
• Poolside entertainment
• Travel and camping
• Large portable audio setups

Key Benefits

Massive JBL Pro Sound with AI Sound Boost

Dual woofers, tweeters, and passive radiators deliver deep bass and loud, room-filling audio with reduced distortion at high volume levels.

Powerful Portable Party Audio

Designed for larger gatherings and outdoor spaces where strong bass and high-volume playback matter most.

Extended Battery Life

Enjoy up to 28 hours of playback, with additional Playtime Boost support for even longer listening sessions.

Waterproof and Dustproof Design

Rugged IP68-rated construction makes it suitable for beaches, poolsides, outdoor events, and travel environments.

Customizable Bass Modes

Switch between classic bass tuning, Deep Bass mode, and Punchy Bass mode depending on your listening preference.

Auracast Multi-Speaker Pairing

Wirelessly connect multiple compatible JBL speakers for wider stereo sound and synchronized party playback.

Lossless USB-C Audio Playback

Supports wired lossless playback through USB-C connection for higher-quality listening from compatible devices.

Technical Highlights

• JBL Pro Sound with AI Sound Boost
• Dual woofers and dual tweeters
• Triple passive bass radiators
• Up to 28 hours battery life
• Playtime Boost support
• IP68 waterproof and dustproof rating
• Auracast multi-speaker pairing
• USB-C lossless audio playback
• Portable carry handle design

Ideal For

• Outdoor entertainment
• Portable party setups
• Poolside music
• Travel and camping
• High-volume music playback
• Portable bass-heavy audio