Product Overview
The JBL Go 4 is an ultra-portable Bluetooth speaker designed to deliver JBL Pro Sound with powerful bass. It features a durable, waterproof, and dustproof design, extended battery life with Playtime Boost, and multi-speaker connectivity via Auracast. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your JBL Go 4 speaker.

Image: The JBL Go 4 Wireless Ultra Portable Bluetooth Speaker in black.
Key Features
- Ultra-portable JBL Pro Sound: Experience powerful audio with deep bass from a compact speaker.
- Extended Playtime: Enjoy up to 7 hours of music playback, extendable by an additional 2 hours with Playtime Boost.
- Waterproof and Dustproof (IP67): Designed to withstand water immersion and dust, making it suitable for various environments.
- Auracast Multi-speaker Connection: Wirelessly connect multiple Auracast-enabled JBL speakers for a larger sound experience or stereo pairing.
- JBL Portable App Compatibility: Manage settings, receive updates, and customize EQ presets via the dedicated mobile application.
Setup Guide
Unboxing and Initial Charge
Before first use, ensure the JBL Go 4 is fully charged. Connect the speaker to a power source using the provided USB-C cable.

Image: The JBL Go 4 speaker with its USB-C charging port visible on the side.
Powering On/Off
To power on the speaker, press and hold the power button located on the top surface until the indicator light illuminates. To power off, press and hold the power button again until the light turns off.
Operating Instructions
Bluetooth Pairing
- Ensure the JBL Go 4 is powered on.
- Press the Bluetooth button on the speaker. The indicator light will flash, indicating it is in pairing mode.
- On your device (smartphone, tablet, etc.), navigate to the Bluetooth settings.
- Select "JBL Go 4" from the list of available devices.
- Once connected, the indicator light on the speaker will turn solid.

Image: Top view of the JBL Go 4 speaker, highlighting the control buttons for power, Bluetooth, and volume.
Playtime Boost Feature
To extend battery life by up to 2 hours, activate the Playtime Boost feature. This feature optimizes performance for louder and clearer sound while conserving power. Refer to the JBL Portable app for specific controls related to this feature.

Image: Multiple JBL Go 4 speakers in use, demonstrating the extended playtime capability.
Auracast Multi-speaker Connection
For a more immersive audio experience, you can connect multiple JBL Auracast-enabled speakers:
- Ensure all speakers are powered on and within range.
- On the primary JBL Go 4 speaker, press the Auracast button.
- On other Auracast-enabled JBL speakers, press their respective Auracast buttons.
- The speakers will automatically connect, creating a synchronized audio system.
JBL Portable App
Download the JBL Portable app from your device's app store to unlock additional features and customize your speaker settings. The app allows you to:
- Receive firmware updates.
- Access product support.
- Fine-tune audio with multiple EQ presets or a customizable equalizer.
Maintenance
Cleaning
To clean your JBL Go 4 speaker, use a soft, damp cloth. Avoid using abrasive cleaners or solvents, as these can damage the speaker's finish and components. Ensure the USB-C port cover is securely closed before cleaning or exposing to water.
Storage
When not in use for extended periods, store the speaker in a cool, dry place away from direct sunlight and extreme temperatures. Fully charge the battery before storing to maintain battery health.

Image: The JBL Go 4 speaker in water, highlighting its waterproof and dustproof design.
Troubleshooting
If you encounter issues with your JBL Go 4 speaker, refer to the following table for common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Low battery or no charge. | Charge the speaker using the USB-C cable. |
| Cannot pair via Bluetooth. | Speaker not in pairing mode; device Bluetooth off; too far from device. | Ensure speaker is in pairing mode (flashing light). Turn device Bluetooth off/on. Move speaker closer to device (within 10 meters). |
| No sound or low volume. | Volume too low on speaker or device; incorrect audio source. | Increase volume on both speaker and connected device. Verify correct audio output on your device. |
| Auracast connection issues. | Speakers not Auracast-enabled; speakers out of range; incorrect pairing sequence. | Ensure all speakers support Auracast. Keep speakers within close proximity. Follow the Auracast pairing steps carefully. |
Specifications
Detailed technical specifications for the JBL Go 4 Wireless Ultra Portable Bluetooth Speaker:
| Feature | Detail |
|---|---|
| Brand | JBL |
| Model Name | JBL GO 4 |
| Model Number | JBLGO4BLK |
| Speaker Type | Wireless Ultra Portable Bluetooth Speaker |
| Connectivity Technology | Bluetooth |
| Bluetooth Range | 10 Metres |
| Speaker Maximum Output Power | 4.2 Watts |
| Frequency Response | 20 KHz |
| Audio Output Mode | Stereo |
| Water Resistance Level | Waterproof (IP67) |
| Battery Average Life | 7 Hours (up to 9 hours with Playtime Boost) |
| Battery Charge Time | 7 Hours |
| Battery Capacity | 10000 mAh |
| Item Dimensions (D x W x H) | 6.9D x 8.6W x 4H Centimeters |
| Item Weight | 0.19 Kilograms |
| Box Contents | 1 x JBL Go 4 |
| Country of Origin | Vietnam |

Image: Dimensions of the JBL Go 4 speaker.
Warranty and Support
Warranty Information
The JBL Go 4 comes with a 1-year warranty provided by the manufacturer from the date of purchase. Please retain your proof of purchase for warranty claims.
Customer Support
For product support, technical assistance, or warranty inquiries, please contact Harman International customer service. You can also utilize the JBL Portable app for product support and updates.
Manufacturer Contact Information: HARMAN International Industries, Incorporated 8500 Balboa Boulevard, Northridge, CA 91329 USA.
Importer Contact Information (India): Harman International (India) Pvt Ltd, Salarpuria Sattva Knowledge Court, Office-1, Wing ‘A’ & ‘B’ 3rd floor, Plot No. 9, Phase I, Doddenakkundi Industrial area Bangalore -560048, Karnataka.