JBL Go 4 Ultra-Portable Bluetooth Speaker – IP67 Waterproof, Bluetooth 5.3, Auracast, Up to 9H Playtime – Blue (Open Sealed)

Description

The JBL Go 4 – Blue is an ultra-portable Bluetooth speaker designed to deliver JBL Pro Sound with punchy bass in a compact, lightweight design that is easy to carry anywhere.

Despite its small size, the Go 4 delivers 4.2W RMS output through a 45mm driver and features an IP67 waterproof and dustproof rating, making it suitable for indoor and outdoor listening.

It provides up to 7 hours of music playback from a single charge, while Playtime Boost can add up to 2 additional hours of playback. Bluetooth 5.3 provides convenient wireless connectivity, while Auracast allows compatible JBL speakers to be linked together for a larger listening setup.

The speaker also works with the JBL Portable app, which provides access to supported EQ settings, updates, and additional features.

This is the Blue version and is sold as Open Sealed.

Key Features

• JBL Go 4 Ultra-Portable Bluetooth Speaker
• JBL Pro Sound
• Punchy bass
• 4.2W RMS Output
• 45mm / 1.75" Driver
• Bluetooth 5.3
• IP67 Waterproof & Dustproof
• Up to 7 Hours Battery Life
• Up to 2 Extra Hours with Playtime Boost
• Up to 9 Hours Combined Playback with Playtime Boost
• Auracast Multi-Speaker Connection
• Pair two Go 4 speakers for stereo sound
• JBL Portable app support
• Customizable EQ through supported app features
• Rechargeable 850mAh Li-ion Polymer Battery
• USB-C Charging
• Integrated carrying loop
• Compact and lightweight
• Approximately 190g
• Made in part with recycled materials
• Color: Blue
• Condition: Open Sealed

JBL Pro Sound with Punchy Bass

The JBL Go 4 is designed to deliver surprisingly powerful audio from its compact body.

Its 45mm driver provides 4.2W RMS output, delivering JBL Pro Sound suitable for:

• Music
• Podcasts
• Videos
• Casual Gaming
• Outdoor Activities
• Travel
• Bedroom & Desk Use
• Poolside Listening

IP67 Waterproof & Dustproof

The JBL Go 4 carries an IP67 rating, providing protection against both water and dust.

This makes the speaker suitable for environments such as:

• Poolside
• Beach
• Outdoor Trips
• Camping
• Picnics
• Kitchen
• Everyday Travel

The IP67 rating applies when the speaker is used according to JBL's specified conditions and with relevant covers/ports properly secured.

Up to 7 Hours + Playtime Boost

The built-in rechargeable battery provides up to 7 hours of music playback under JBL's specified test conditions.

Activating Playtime Boost can extend playback by up to an additional 2 hours.

Battery

• Standard Playback: Up to 7 Hours
• Playtime Boost: Up to 2 Additional Hours
• Maximum Combined Playback: Up to 9 Hours
• Battery: Li-ion Polymer
• Battery Capacity: 850mAh
• Battery Energy: 3.23Wh
• Charging Time: Approximately 3 Hours
• Charging Input: 5V / 1A
• Charging Connection: USB-C

Actual battery life varies depending on volume, audio content, battery condition, wireless use, and other factors.

Bluetooth 5.3

The JBL Go 4 uses Bluetooth 5.3 for wireless audio streaming from compatible devices.

It can connect with supported:

• Smartphones
• Tablets
• Laptops
• PCs
• Smart TVs with Bluetooth audio
• Other Bluetooth playback devices

Bluetooth Specifications

• Bluetooth Version: 5.3
• Bluetooth Profile: A2DP V1.4 / AVRCP V1.6
• Frequency Range: 2400MHz–2483.5MHz
• Transmitter Power: ≤9dBm EIRP

Auracast Multi-Speaker Connection

The JBL Go 4 supports Auracast, allowing it to connect wirelessly with compatible Auracast-enabled JBL speakers.

You can also pair two JBL Go 4 speakers together for stereo sound.

This provides an easy way to expand your audio setup for larger rooms, gatherings, or outdoor listening.

JBL Portable App

The Go 4 supports the JBL Portable app on compatible mobile devices.

Supported app features include:

• Speaker updates
• Product support
• EQ presets
• Customizable equalizer
• Bass adjustment
• Midrange adjustment
• Treble adjustment
• Additional supported speaker settings

Ultra-Portable Design

The JBL Go 4 measures approximately:

94.3 × 75.7 × 42.2mm

and weighs only around:

190g

Its compact dimensions allow it to fit easily inside backpacks, handbags, travel bags, or even larger pockets.

The redesigned integrated carrying loop also makes it easier to grab and carry.

Audio Specifications

Specifications

Quick Product Fields

• Connection Type: Bluetooth 5.3
• Speaker Type: Ultra-Portable Bluetooth Speaker
• Output Power: 4.2W RMS
• Waterproof: Yes – IP67
• Dustproof: Yes – IP67
• Battery Life: Up to 7 Hours
• Playtime Boost: Up to 2 Extra Hours
• Charging Port: USB-C
• App Support: JBL Portable
• Auracast: Yes
• Color: Blue
• Condition: Open Sealed

What's Included

The standard JBL package includes:

• 1× JBL Go 4 Bluetooth Speaker
• 1× USB Type-C Charging Cable
• Quick Start Guide
• Warranty Card / Safety Sheet

Because this unit is Open Sealed, the actual package contents should be checked on the individual unit before sale.

Important Playtime Boost Note

The JBL Go 4 provides up to 7 hours of standard music playback.

Playtime Boost can add up to 2 additional hours, for up to approximately 9 hours total under suitable conditions.

Playtime Boost optimizes speaker performance to extend battery life, so the audio characteristics may differ from standard playback.

Actual runtime varies depending on volume, audio content, battery condition, environmental conditions, and other factors.

Important Waterproof Note

The IP67 rating provides water and dust resistance under specified test conditions.

Waterproofing should not be interpreted as meaning the speaker is intended for prolonged underwater operation, and the speaker should be properly dried after exposure to water.

Important Note – Open Sealed

This product is listed as Open Sealed, meaning the original packaging has been opened.

Before publishing or sale, verify the individual unit's speaker condition, battery condition, USB-C charging cable, charging operation, Bluetooth functionality, included accessories, packaging condition, and warranty details.

Best For

• Portable Music
• Indoor & Outdoor Use
• Poolside Listening
• Beach Trips
• Camping
• Travel
• Bedroom & Desk Setup
• Small Gatherings
• Smartphones & Tablets
• Everyday Bluetooth Audio
• Users looking for a compact waterproof speaker

Why Choose the JBL Go 4?

• Compact ultra-portable design makes it easy to carry anywhere.
• JBL Pro Sound with punchy bass provides impressive audio for its size.
• 4.2W RMS output delivers clear everyday listening.
• IP67 waterproof and dustproof protection makes it suitable for outdoor use.
• Up to 7 hours of standard playback provides convenient all-day portability.
• Playtime Boost adds up to 2 additional hours when extra runtime is needed.
• Bluetooth 5.3 provides convenient wireless connectivity.
• Auracast support allows compatible multi-speaker setups.
• Two Go 4 speakers can be paired for stereo sound.
• JBL Portable app provides EQ customization and supported speaker controls.
• Lightweight 190g construction and an integrated loop make it easy to take on the go.
• Attractive Blue finish gives the speaker a bold, modern appearance.