1. Product Overview
The GMB AUDIO Bluetooth Speaker with LED Light Effect is a portable audio device designed for wireless music streaming and enhanced visual experience. It features Bluetooth connectivity for easy pairing with your devices and integrated LED lights for dynamic illumination.

A black, oval-shaped GMB AUDIO Bluetooth speaker with a textured fabric grille and a braided carry strap. One end features a passive bass radiator. A thin white LED strip is visible along the bottom edge.
2. Safety Information
- Do not expose the speaker to extreme temperatures, direct sunlight, or high humidity.
- Avoid dropping or subjecting the speaker to strong impacts.
- Keep the speaker away from water or other liquids.
- Do not attempt to disassemble, repair, or modify the speaker yourself. Refer to qualified service personnel.
- Use only the charging cable provided or a certified equivalent.
- Keep out of reach of children.
3. Package Contents
- GMB AUDIO Bluetooth Speaker
- USB Charging Cable
- User Manual
4. Setup
4.1 Charging the Speaker
- Connect the small end of the USB charging cable to the charging port on the speaker.
- Connect the large end of the USB charging cable to a USB power adapter (not included) or a computer's USB port.
- The LED indicator will show charging status (e.g., red for charging, off when fully charged).
- Allow approximately 3-4 hours for a full charge.
4.2 Powering On/Off
- To Power On: Press and hold the Power button for 2-3 seconds until you hear an audible prompt or see the LED indicator light up.
- To Power Off: Press and hold the Power button for 2-3 seconds until you hear an audible prompt or the LED indicator turns off.
5. Operating Instructions
5.1 Bluetooth Pairing
- Ensure the speaker is powered on and in Bluetooth pairing mode (the LED indicator will typically flash blue rapidly).
- On your mobile device (smartphone, tablet, computer), enable Bluetooth.
- Search for available Bluetooth devices. The speaker will appear as "GMB AUDIO Speaker" or similar.
- Select the speaker from the list to pair. Once successfully paired, you will hear a confirmation sound, and the LED indicator will turn solid blue.
- The speaker will automatically reconnect to the last paired device when powered on, if the device is within range and Bluetooth is enabled.
5.2 Controlling Playback
- Play/Pause: Press the Play/Pause button once.
- Volume Up: Press the Volume Up (+) button. Hold to increase volume continuously.
- Volume Down: Press the Volume Down (-) button. Hold to decrease volume continuously.
- Next Track: Press and hold the Volume Up (+) button.
- Previous Track: Press and hold the Volume Down (-) button.
5.3 LED Light Effects
The speaker features integrated LED lights that enhance your listening experience. Specific controls for the LED light effects may vary:
- Toggle Lights: Look for a dedicated Light button or a long press on a specific button (e.g., Play/Pause) to turn the LED lights on or off.
- Change Modes: Repeatedly press the Light button to cycle through different light modes (e.g., solid color, pulsating, multi-color).
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the speaker. Do not use abrasive cleaners or solvents.
- Storage: Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, fully charge the speaker before first use and at least once every three months if not used regularly.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Low battery. | Charge the speaker fully. |
| Cannot pair with Bluetooth device. | Speaker not in pairing mode; Device Bluetooth off; Speaker too far. | Ensure speaker is in pairing mode; Turn on device Bluetooth; Move speaker closer to device (within 10m). |
| No sound from speaker. | Volume too low; Device not connected; Incorrect audio source. | Increase speaker and device volume; Re-pair Bluetooth; Check device's audio output settings. |
| LED lights not working. | Lights turned off; Malfunction. | Press the Light button to activate; If issue persists, contact support. |
8. Specifications
| Feature | Specification |
|---|---|
| Brand | GMB AUDIO |
| Model Number | PRO0459409 |
| Connectivity Technology | Bluetooth |
| Special Feature | Bluetooth, LED Light Effect |
| Color | Multicolor |
| Package Dimensions | 35 x 25 x 20 cm |
| Item Weight | 900 grams |
9. Warranty and Support
GMB AUDIO products are designed for reliability and performance. For warranty information, please refer to the warranty card included with your purchase or visit the official GMB AUDIO website. If you encounter any issues or require technical assistance, please contact GMB AUDIO customer support through their official channels.
Please retain your proof of purchase for warranty claims.





