JBL Boombox 4 Portable Bluetooth Speaker

JBL Boombox 4 Portable Bluetooth Speaker – AI SoundBoost, Dual Bass Modes, 34 Hr Playtime, IP68 Waterproof & Dustproof

JBL is turning up the volume once again with the launch of JBL Boombox 4. Built to shake rooms, fuel gatherings, and unite people through powerful sound, this is not just a speaker – it’s JBL in its purest form: foot-thumping bass powered by cutting-edge tech.

More Power. Less Distortion.
Boombox 4 features JBL’s AI SoundBoost, an intelligent audio enhancement that pushes the drivers harder and louder while staying crystal clear. The result? That legendary JBL ProSound: refined, clean highs, booming lows, and room-filling energy at every volume.

Louder and Lighter.
With more portable power than ever before, Boombox 4 is about 1 kg lighter than its predecessor, making it easier to carry, pack, and take anywhere the party goes. But don’t let the lighter build fool you — this speaker delivers up to 50% more power output on battery. Less weight. More punch.

Now you can both hear and see the bass: the JBL logos glow white or orange when Bass Boost is on. Choose between Deep Bass or Punchy Bass modes and let the speaker handle the rest.

This take-it-anywhere speaker is built to bring people together. The robust new design has a sturdier foot and is IP68 water- and dustproof, meaning it’s ready for the pool, the park, the beach, or wherever your crew gathers. Plus, with Auracast™ built-in, you can instantly link it with other compatible JBL speakers for even bigger sound.

Launching in bold Black, Blue or rugged Camouflage, the JBL Boombox 4 matches your energy and your style. Available from September 2025 on JBL.com.

Key Features

AI Sound Boost – Intelligent processing for more power & less distortion

Dual Bass Modes – Deep Bass (rich & full) or Punchy Bass (tight & energetic)

LED-lit JBL horn logos glow when Bass Boost is active

Almost 50% more output power on battery than Boombox 3

Three passive radiators + two new mid-range drivers for cleaner, harder-hitting sound

USB-C lossless audio for wired digital listening

Up to 28 hrs battery / up to 34 hrs with Playtime Boost (replaceable battery)

Auracast™ multi-speaker & stereo pairing

IP68 waterproof & dustproof – ready for any environment

Built-in Powerbank charges your phone or tablet

Lighter design (5.9 kg) – easier to carry without sacrificing output

Specifications

Transducers: 2 × 5″ (123 mm) woofers; 2 × 0.75″ (20 mm) tweeters; 3 passive radiators
Dimensions (W×H×D): 51 × 26 × 21 cm (20 × 10 × 8 in)
Weight: 5.9 kg (13 lbs) – 12% lighter vs. Boombox 3
Bluetooth Version: 5.4
Profiles: A2DP 1.4, AVRCP 1.6
Frequency Range: 2.4 – 2.4835 GHz
Transmitter Power: ≤14 dBm (EIRP)
Battery Type: Replaceable Li-ion 99.02 Wh
Charge Time: 3 hours
Maximum Playtime: Up to 28 hrs (standard) / 34 hrs with Playtime Boost
Connections: AC-in, USB-C (lossless audio)
IP Code: IP68

What’s in the Box

1 × JBL Boombox 4 Speaker

1 × AC Power Cord (plug type varies by region)

1 × Quick Start Guide

1 × Safety Sheet