Introduction
Thank you for choosing the Boult Bassbox Q20 Bluetooth Speaker. This manual provides essential information for setting up, operating, and maintaining your speaker to ensure optimal performance and longevity. Please read this manual thoroughly before using the product.

Image: The Boult Bassbox Q20 Bluetooth Speaker, a portable black speaker with a handle and illuminated RGB lights.
Key Features
- 20W Bass-Boosted Audio: Experience powerful sound with BoomX™ Technology, a full-range bass driver, and dual passive radiators.
- Bluetooth v5.3 Connectivity: Ensures stable and fast wireless pairing with compatible devices up to 10 meters.
- Long Playtime: Up to 8 hours of continuous music playback on a single charge.
- Multi-Mode Compatibility: Supports Bluetooth, AUX, TF Card, and USB input modes.
- Dynamic RGB LED Lights: Integrated lighting effects to enhance your listening experience.
- Portable Design: Compact, lightweight, and features an easy-carry handle for convenience.
- TWS Functionality: Connect two Bassbox Q20 speakers for true wireless stereo sound.
Package Contents
Upon opening the package, please verify that all the following items are included:
- Boult Bassbox Q20 Speaker
- User Manual
- Warranty Card
- Charging Cable (Type-C)
- AUX Cable
Setup
1. Charging the Speaker
Before first use, fully charge the speaker. Connect the provided Type-C charging cable to the speaker's charging port and the other end to a compatible USB power adapter (not included). The LED indicator will show charging status and turn off or change color when fully charged.

Image: Close-up of the Boult Bassbox Q20 speaker highlighting its 2400mAh battery capacity and 8 hours of playtime.
2. Powering On/Off
- To Power On: Press and hold the Power button for a few seconds until the indicator lights illuminate.
- To Power Off: Press and hold the Power button again for a few seconds until the indicator lights turn off.
3. Bluetooth Pairing
The Bassbox Q20 uses Bluetooth v5.3 for stable connections.
- Ensure the speaker is powered on and in Bluetooth pairing mode (indicated by a flashing LED).
- On your device (smartphone, tablet, PC), enable Bluetooth and search for available devices.
- Select "Boult Bassbox Q20" from the list of devices.
- Once connected, the speaker will emit a confirmation sound, and the LED indicator will stop flashing.

Image: The Boult Bassbox Q20 speaker with a smartphone, illustrating Bluetooth v5.3 connectivity for stable and fast pairing.
Operating Instructions
Basic Controls
The speaker features intuitive buttons for easy control:

Image: A hand interacting with the control panel of the Boult Bassbox Q20, showing buttons for Play/Pause, Volume, Power, and Mode Change.
- Power Button: Press and hold to power on/off.
- Play/Pause Button: Press once to play or pause audio.
- Volume Up (+): Press to increase volume. Press and hold for next track.
- Volume Down (-): Press to decrease volume. Press and hold for previous track.
- Mode Button (M): Press to switch between input modes (Bluetooth, AUX, TF Card, USB, FM).
Input Modes
The Bassbox Q20 supports multiple audio input options:

Image: Rear view of the Boult Bassbox Q20 speaker, illustrating its multi-input options including USB, SD Card, Type-C charging, and FM mode with an antenna.
- Bluetooth Mode: Connect wirelessly as described in the Setup section.
- AUX Mode: Connect an external audio device using the provided 3.5mm AUX cable. The speaker will automatically switch to AUX mode or can be selected using the Mode button.
- TF Card Mode: Insert a TF (microSD) card with audio files into the designated slot. The speaker will automatically play content from the card.
- USB Mode: Insert a USB flash drive with audio files into the USB port. The speaker will automatically play content from the drive.
- FM Radio Mode: Press the Mode button to switch to FM radio. Use the volume buttons to scan for stations.
RGB LED Lights
The speaker features dynamic RGB LED lights. These lights can be cycled through different modes or turned off by pressing the dedicated light button (if available, otherwise it cycles automatically with mode changes or music).

Image: The Boult Bassbox Q20 speaker displaying multiple vibrant RGB lighting modes.
True Wireless Stereo (TWS) Function
You can pair two Boult Bassbox Q20 speakers together for a true stereo sound experience.
- Ensure both Bassbox Q20 speakers are powered on and not connected to any Bluetooth device.
- On one speaker (this will be the primary speaker), press and hold the TWS button (or a specific button designated for TWS pairing, refer to speaker markings).
- The primary speaker will search for the secondary speaker. Once connected, both speakers will emit a confirmation sound.
- Now, connect your device to the primary speaker via Bluetooth. Audio will play in stereo through both speakers.

Image: Two Boult Bassbox Q20 speakers positioned to illustrate the True Wireless Stereo (TWS) functionality for enhanced sound.
Maintenance
Cleaning
- Wipe the speaker with a soft, dry, lint-free cloth.
- Do not use harsh chemicals, cleaning solvents, or strong detergents.
- Avoid getting moisture into any openings.
Storage
- Store the speaker in a cool, dry place away from extreme temperatures and direct sunlight.
- If storing for an extended period, charge the battery periodically to maintain its health.
Water Resistance
The Boult Bassbox Q20 is designed with a water-resistant rating. While it can withstand splashes and light rain, it is not fully waterproof. Do not submerge the speaker in water or expose it to heavy rain.
Troubleshooting
If you encounter any issues with your Boult Bassbox Q20 speaker, please refer to the following common solutions:
| Problem | Possible Solution |
|---|---|
| Speaker does not power on. | Ensure the battery is charged. Connect the speaker to a power source using the Type-C cable. |
| Cannot pair via Bluetooth. | Make sure the speaker is in pairing mode. Disable and re-enable Bluetooth on your device. Ensure no other devices are connected to the speaker. Move closer to the speaker. |
| No sound or low volume. | Check the volume levels on both the speaker and your connected device. Ensure the correct input mode is selected. Check cable connections if using AUX/USB/TF card. |
| Sound distortion. | Reduce the volume on both the speaker and your device. Ensure the audio source is of good quality. |
| TWS pairing fails. | Ensure both speakers are fully charged and not connected to any other Bluetooth devices. Try resetting both speakers and attempting TWS pairing again. |
If the problem persists, please contact customer support for further assistance.
Specifications
| Feature | Detail |
|---|---|
| Model Name | Bassbox Q20 |
| Brand | Boult |
| Speaker Type | Portable Soundbar |
| Output Power | 20 Watts |
| Connectivity Technology | Bluetooth v5.3, Auxiliary, USB, TF Card |
| Bluetooth Range | Up to 10 meters |
| Battery Life | Up to 8 hours |
| Battery Capacity | 2400mAh (Lithium Polymer) |
| Charging Port | Type-C |
| Water Resistance Level | Water Resistant |
| Product Dimensions | 140D x 28W x 125H Millimeters |
| Item Weight | 1.1 Kilograms |
| Included Components | Q20 Speaker, User Manual, Warranty Card |
Warranty and Support
Warranty Information
The Boult Bassbox Q20 Bluetooth Speaker comes with a 1-year manufacturer's warranty from the date of purchase. This warranty covers manufacturing defects. Please retain your purchase receipt as proof of purchase for warranty claims. The warranty does not cover damage caused by misuse, accidents, unauthorized modifications, or normal wear and tear.
Customer Support
For any product-related queries, technical assistance, or warranty claims, please contact Boult customer support. Refer to the contact details provided on the warranty card or visit the official Boult website for the most up-to-date support information.





