JBL JBLGO4BLKAM
JBL Go 4 Ultra-Portable Bluetooth Speaker User Manual
Model: JBLGO4BLKAM
Brand: JBL
1. Introduction
The JBL Go 4 is an ultra-portable, waterproof, and dustproof Bluetooth speaker designed to deliver clear, loud JBL Pro Sound with rich, punchy bass wherever you go. Its compact size and integrated loop make it highly convenient for travel and outdoor activities. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your JBL Go 4 speaker.
Key Features:
- Ultra-portable JBL Pro Sound with punchier bass: Experience powerful audio from a compact design.
- Up to 7 hours of playtime plus 2 hours with Playtime Boost: Enjoy extended listening sessions with an additional boost when needed.
- Waterproof and dustproof (IP67): Designed to withstand immersion in water and protect against dust ingress, making it ideal for outdoor use.
- Multi-speaker connection by Auracast: Pair two Go 4 speakers for stereo sound or connect multiple JBL Auracast-enabled speakers for a larger soundstage.
- Made in part with recycled materials: Constructed with post-consumer recycled plastic and fabric for the speaker grille, and packaged in FSC-certified paper with soy ink.
2. What's in the Box
Ensure all items are present upon unboxing your JBL Go 4 speaker:
- 1 x JBL Go 4 Speaker
- 1 x Type-C to Type-A charging cable
- 1 x Quick Start Guide
- 1 x Warranty Card and Safety Sheet
3. Product Overview
Familiarize yourself with the components and controls of your JBL Go 4 speaker.

Figure 3.1: Front-angled view of the JBL Go 4 speaker in black, showcasing its compact design and integrated loop.

Figure 3.2: The JBL Go 4 speaker with its approximate dimensions: 3.7 inches (depth) x 1.7 inches (width) x 3 inches (height).

Figure 3.3: Top view of the JBL Go 4, displaying the volume down (-), play/pause (triangle), and volume up (+) buttons.

Figure 3.4: Side view of the JBL Go 4, showing the power, Bluetooth pairing, and Auracast buttons.

Figure 3.5: An illustrative cutaway view of the JBL Go 4, highlighting its internal speaker driver and passive radiators for enhanced bass.
4. Setup
4.1 Charging the Battery
Before first use, fully charge your JBL Go 4 speaker. Connect the included Type-C to Type-A charging cable to the USB-C port on the speaker and a compatible USB power source. The charging time is approximately 7 hours for a full charge.
4.2 Power On/Off
- To power on: Press the Power button (
) located on the side of the speaker. - To power off: Press and hold the Power button until the speaker turns off.
4.3 Bluetooth Pairing
To connect your JBL Go 4 to a Bluetooth-enabled device (smartphone, tablet, laptop):
- Power on the JBL Go 4 speaker.
- Press the Bluetooth button (
) on the side of the speaker. The Bluetooth indicator light will flash, indicating it's in pairing mode. - On your device, enable Bluetooth and search for available devices.
- Select "JBL Go 4" from the list of devices.
- Once connected, the Bluetooth indicator light will turn solid.
4.4 Multi-Speaker Connection (Auracast)
For an enhanced audio experience, you can wirelessly connect multiple JBL Auracast-enabled speakers, including two Go 4s for stereo sound:
- Ensure all JBL Auracast-enabled speakers are powered on.
- On the first speaker (primary), press the Auracast button (
). - On the secondary speakers you wish to connect, also press the Auracast button.
- The speakers will automatically connect, and audio will play across all linked devices.
5. Operating Instructions
5.1 Basic Controls
- Play/Pause: Press the Play button (triangle) once.
- Volume Up: Press the Volume Up button (+) to increase volume.
- Volume Down: Press the Volume Down button (-) to decrease volume.
- Skip Track Forward: Double-press the Play button.
- Skip Track Backward: Triple-press the Play button.
5.2 Playtime Boost
To extend your battery life by up to 2 additional hours, tap the Playtime Boost feature. This feature optimizes power consumption for longer playback.

Figure 5.1: The JBL Go 4 offers up to 7 hours of playtime, with an additional 2 hours available via the Playtime Boost feature.
6. Maintenance
6.1 Cleaning
Due to its IP67 waterproof and dustproof rating, the JBL Go 4 can be easily cleaned. Use a soft, damp cloth to wipe down the speaker. For stubborn dirt, a mild soap solution can be used. Ensure the USB-C port cover is securely closed before cleaning with water. Do not use abrasive cleaners or solvents.

Figure 6.1: The JBL Go 4 is designed to be waterproof and dustproof, making it suitable for various environments.
6.2 Storage
When not in use for extended periods, store the speaker in a cool, dry place away from direct sunlight and extreme temperatures. It is recommended to fully charge the battery before storing to maintain battery health.
7. Troubleshooting
If you encounter issues with your JBL Go 4 speaker, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on | Low battery; Power button not pressed correctly | Charge the speaker fully; Press and hold the Power button firmly. |
| No sound | Volume too low; Device not connected; Speaker muted | Increase volume on speaker and device; Re-pair Bluetooth; Check device's mute settings. |
| Bluetooth pairing fails | Speaker not in pairing mode; Device out of range; Interference | Press Bluetooth button to enter pairing mode; Move device closer to speaker; Turn off other Bluetooth devices. |
| Poor sound quality | Low battery; Device too far; Obstructions | Charge the speaker; Move device closer; Remove obstructions between speaker and device. |
| Auracast connection issues | Speakers not in Auracast mode; Too many speakers; Distance | Ensure all speakers are in Auracast pairing mode; Reduce number of connected speakers if experiencing instability; Keep speakers within close proximity. |
Factory Reset:
If issues persist, a factory reset may resolve them. Consult the official JBL support website or the included Quick Start Guide for specific factory reset instructions for the JBL Go 4, as this procedure can vary by model.
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | JBL Go 4 |
| Item Model Number | JBLGO4BLKAM |
| Speaker Type | Outdoor |
| Connectivity Technology | Bluetooth |
| Wireless Communication Technology | Bluetooth |
| Bluetooth Protocol | Bluetooth |
| Water Resistance Level | Waterproof (IP67) |
| Dustproof Rating | IP67 |
| Battery Life | 7 Hours (up to 9 hours with Playtime Boost) |
| Charging Time | 7 Hours |
| Power Source | Battery Powered (1 Lithium Ion battery included) |
| Speaker Maximum Output Power | 4.2 Watts |
| Audio Output Mode | Stereo |
| Product Dimensions | 3.7"D x 1.7"W x 3"H |
| Item Weight | 0.19 Kilograms (6.7 ounces) |
| Material | Plastic |
| Control Method | Touch |
| Compatible Devices | Smartphone, Tablet, Laptop |
| UPC | 050036399289 |
9. Warranty and Support
The JBL Go 4 speaker comes with a Limited Warranty. Please refer to the included Warranty Card and Safety Sheet for detailed information regarding warranty coverage, terms, and conditions. For technical support, product registration, or further inquiries, visit the official JBL support website or contact their customer service. Keep your proof of purchase for warranty claims.
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