JBL Boombox 4 Waterproof Portable Bluetooth Speaker

The JBL Boombox 4 Waterproof Portable Bluetooth Speaker is JBL’s latest flagship portable speaker, engineered to deliver bigger, louder, and more immersive sound than ever before. Featuring JBL Pro Sound with AI Sound Boost, this premium Bluetooth speaker produces deep, punchy bass, crystal-clear vocals, and exceptional clarity even at high volumes. Whether you’re hosting a backyard party, relaxing by the pool, camping, or enjoying outdoor adventures, the JBL Boombox 4 Waterproof Portable Bluetooth Speaker is built to provide outstanding audio performance wherever you go.

Designed with portability in mind, the JBL Boombox 4 Waterproof Portable Bluetooth Speaker is lighter than its predecessor while maintaining its iconic rugged design. It features an IP68 waterproof and dustproof rating, making it ready for the beach, poolside, camping trips, and challenging outdoor environments. Furthermore, the built-in rechargeable battery offers up to 28 hours of playtime, with Playtime Boost extending playback by up to 6 additional hours, giving you as much as 34 hours of entertainment.

JBL Boombox 4 Waterproof Portable Bluetooth Speaker Features

The JBL Boombox 4 Waterproof Portable Bluetooth Speaker features a newly engineered acoustic system with:

• 2 × 5-inch Woofers
• 2 × 0.75-inch Tweeters
• 3 Passive Radiators

Combined with AI Sound Boost, the speaker analyzes your music in real time and automatically optimizes the audio for maximum power while minimizing distortion. Additionally, two selectable Bass Boost modes—Deep Bass and Punchy Bass—allow you to customize the sound to match your music and environment.

Long Battery Life and Portable Design

The JBL Boombox 4 Waterproof Portable Bluetooth Speaker is powered by a rechargeable 99.02Wh Li-ion battery that delivers up to 28 hours of playback, with Playtime Boost adding up to 6 extra hours when enabled.

Moreover, the speaker features a redesigned lightweight construction, making it easier to carry using its sturdy integrated handle. It also includes a replaceable battery (sold separately), helping extend the product’s lifespan.

Smart Connectivity

The JBL Boombox 4 Waterproof Portable Bluetooth Speaker offers modern connectivity features for seamless music streaming.

It includes:

• Bluetooth 5.4
• Auracast™ Multi-Speaker Connection
• USB-C Lossless Audio Playback
• USB-C Power Bank Function
• JBL Portable App Support
• Dual Device Pairing

With Auracast™, you can wirelessly connect multiple compatible JBL speakers for a larger, synchronized sound experience, making it ideal for parties and outdoor events.

Built for Every Adventure

The JBL Boombox 4 Waterproof Portable Bluetooth Speaker carries an IP68 waterproof and dustproof certification, allowing it to withstand rain, dust, splashes, and outdoor conditions with confidence.

Additionally, its durable construction incorporates recycled plastic, recycled fabric, and FSC-certified paper packaging, making it a more environmentally conscious choice.

Key Features

• Massive JBL Pro Sound
• AI Sound Boost Technology
• Dual 5-Inch Woofers
• Dual 0.75-Inch Tweeters
• Three Passive Radiators
• Up to 34 Hours Playtime with Playtime Boost
• Bluetooth 5.4
• IP68 Waterproof & Dustproof
• Auracast™ Multi-Speaker Connection
• USB-C Lossless Audio Playback
• USB-C Power Bank
• Replaceable Battery
• JBL Portable App Support
• Deep Bass & Punchy Bass Modes
• Lightweight Portable Design