JBL Go 4 Ultra-Portable Bluetooth Speaker - Big Sound, Small Package

In this review the JBL Go 4 is presented as a pocket-friendly Bluetooth speaker for people who need solid sound on the move. The bottom line: it delivers surprisingly strong JBL Pro Sound and punchy bass from a palm-sized body, with the added benefits of IP67 protection and easy portability. For anyone who values loud, clear playback for outdoor hangs, travel, or casual home use, the Go 4 is a sensible pick; its battery life and single-speaker output make it best suited to personal or small-group listening rather than long all-day festivals.

Key Features

• Ultra-portable JBL Pro Sound: The small enclosure produces clear, loud sound and noticeable bass for its size, making it easy to carry without sacrificing audio quality.
• Up to 7 hours playtime: A built-in battery provides a full day of casual use, with a Playtime Boost option that can add around 2 more hours when needed.
• IP67 waterproof and dustproof: The rugged rating means the speaker can handle poolside, beach, and dusty outdoor conditions without worry.
• Auracast multi-speaker connection: Pair two Go 4 units for stereo or link multiple Auracast-enabled speakers wirelessly to expand sound for larger gatherings.
• Partial recycled materials: The grille and some plastic parts use post-consumer recycled materials, and the packaging is FSC paper printed with soy ink.

Who It's For

The JBL Go 4 is ideal for commuters, day-trippers, and anyone who wants a genuinely portable speaker that still sounds bigger than it looks. Its integrated loop and small footprint make it convenient to clip into a bag or hang from a backpack, and the IP67 rating makes it a reliable companion for outdoor activities.

It is less suited to users who need extended battery endurance for multi-day use without charging or those who require high-volume performance for large crowds; in those cases a larger portable speaker with longer playtime would be a better fit.

Pros & Cons

Pros

• Compact size with surprisingly punchy bass and clear mids for casual listening.
• IP67 waterproof and dustproof protection makes it durable outdoors.
• Easy wireless expansion with Auracast and the ability to pair two units for stereo.
• Uses recycled materials and eco-friendly packaging for reduced environmental impact.

Cons

• Battery life is good for day trips but mixed reports suggest it may fall short for heavy users who expect all-day playback without charging.

Specifications

Brand	JBL
Model	Go 4
Playtime	Up to 7 hours (plus up to 2 hours with Playtime Boost)
Protection	IP67 waterproof and dustproof
Connectivity	Bluetooth with Auracast multi-speaker support
Materials	Made in part with post-consumer recycled plastic and fabric

Our Verdict

The JBL Go 4 is a compact, well-built Bluetooth speaker that punches above its weight in sound quality and durability. It represents strong value for anyone who wants reliable outdoor performance, convenient portability, and the option to expand sound with Auracast, while buyers needing very long battery life or very high volumes should consider larger models.

Frequently Asked Questions

Is the JBL Go 4 suitable for pool use?
The IP67 rating means it is waterproof and can handle splashes and brief submersion, so it is fine for poolside use.

Can two Go 4 speakers be used together?
Yes, you can pair two Go 4 units for stereo sound or connect multiple Auracast-enabled speakers for larger coverage.

How long does it take to charge and does battery performance vary?
Customers report mixed experiences with battery life; the listed run time is up to 7 hours and Playtime Boost can add about 2 hours, but heavy volume use will reduce overall playtime.