Introduction
Thank you for purchasing the Supersonic IQ Sound IQ-3404BT High Efficiency Speaker System. This speaker system is designed to provide high-quality audio with versatile connectivity options, including Bluetooth, True Wireless Stereo (TWS), USB, Micro SD, AUX, and FM radio. It also features colorful LED lights and a microphone input for enhanced entertainment. This manual provides essential information for safe and optimal use of your device. Please read it thoroughly before operation and retain it for future reference.
Safety Information
- Do not expose the unit to extreme temperatures, humidity, or direct sunlight.
- Do not block ventilation openings.
- Use only the provided power adapter/USB-C cable for charging.
- Keep the unit away from water or other liquids.
- Do not attempt to disassemble or repair the unit yourself. Refer all servicing to qualified personnel.
- Ensure the speaker is placed on a stable surface to prevent falls.
What's in the Box
Carefully unpack your speaker system and ensure all items are present:
- IQ Sound IQ-3404BT Speaker System
- USB-C Cable
- Remote Control
- User Manual (this document)
Product Overview
Familiarize yourself with the various parts and controls of your speaker system.

Figure 1: Front view of the IQ Sound IQ-3404BT Speaker System.

Figure 2: Key features and inputs of the IQ Sound IQ-3404BT.
Control Panel and Ports

Figure 3: Top control panel and input/output ports.
- DC 5V IN: Power input for charging.
- TF: Micro SD card slot for audio playback.
- USB: USB port for audio playback.
- MIC IN: 3.5mm input for a microphone.
- AUX IN: 3.5mm auxiliary input for external audio devices.
- MODE: Press to switch between Bluetooth, FM Radio, USB, Micro SD, and AUX modes.
- LED.SW: Press to cycle through LED light modes or turn them off.
- V-/V+: Press and hold to decrease/increase volume. Short press for previous/next track in media modes, or previous/next station in FM mode.
- TWS: Press to activate True Wireless Stereo pairing.
- ON/OFF: Power switch for the unit.
Setup
Charging the Battery
Before first use, fully charge the speaker. Connect the provided USB-C cable to the DC 5V IN port on the speaker and the other end to a compatible USB power adapter (not included) or a computer's USB port. The charging indicator (if available) will illuminate during charging and turn off when fully charged. A full charge provides up to 5 hours of playtime.
Powering On/Off
To power on the speaker, slide the ON/OFF switch to the 'ON' position. To power off, slide the switch to the 'OFF' position.
Operating Instructions
Bluetooth Connection
- Turn on the speaker. It will automatically enter Bluetooth pairing mode, indicated by a flashing LED light.
- On your Bluetooth-enabled device (smartphone, tablet, etc.), go to the Bluetooth settings and search for available devices.
- Select "IQ-3404BT" from the list.
- Once paired, the speaker will emit a confirmation sound, and the LED light will stop flashing.
The speaker will automatically reconnect to the last paired device if it is within range and Bluetooth is enabled.
True Wireless Stereo (TWS) Pairing
TWS allows you to connect two IQ Sound IQ-3404BT speakers wirelessly for a stereo sound experience.

Figure 4: Two speakers connected via TWS for stereo sound.
- Ensure both IQ-3404BT speakers are powered on and in Bluetooth mode, but not yet connected to any device.
- On one of the speakers (this will be your primary speaker), press the TWS button. The speaker will emit a sound indicating it is searching for another speaker.
- The two speakers will automatically pair with each other. A confirmation sound will indicate successful TWS pairing.
- Now, connect your Bluetooth device to the primary speaker as described in the "Bluetooth Connection" section. Audio will play through both speakers in stereo.
To disconnect TWS, press the TWS button on either speaker again.
USB/Micro SD Playback
- Insert a USB flash drive or Micro SD card (with MP3 audio files) into the respective port.
- The speaker will automatically switch to USB/Micro SD mode and begin playing audio. If not, press the MODE button to select the correct input.
- Use the V-/V+ buttons (short press) to skip tracks.
- Press and hold V-/V+ to adjust volume.
AUX Input
- Connect an external audio device (e.g., MP3 player, laptop) to the AUX IN port using a 3.5mm audio cable (not included).
- Press the MODE button until the speaker switches to AUX mode.
- Control playback and volume from your connected device.
FM Radio
- Press the MODE button to switch to FM Radio mode.
- The speaker will automatically scan and save available FM stations.
- Use the V-/V+ buttons (short press) to navigate between saved stations.
Microphone Input
- Connect a 3.5mm microphone (not included) to the MIC IN port.
- Adjust the microphone volume as needed. The microphone input works across all audio modes.
LED Light Control
The speaker features colorful LED lights that enhance the audio experience.

Figure 5: Speaker with active LED light show.
Press the LED.SW button on the control panel to cycle through different light modes or to turn the LED lights off.
Remote Control
The included remote control provides convenient access to various functions:
- Power: Turn the speaker on/off.
- Mode: Switch between input sources (Bluetooth, FM, USB, Micro SD, AUX).
- Volume +/-: Adjust the master volume.
- Play/Pause: Control media playback.
- Previous/Next: Skip tracks or FM stations.
- LED: Control LED light modes.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the speaker. Do not use abrasive cleaners or solvents.
- Storage: When not in use for extended periods, store the speaker in a cool, dry place, away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the speaker regularly, even if not in use.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Battery is depleted; Power switch is off. | Charge the speaker; Ensure the ON/OFF switch is in the 'ON' position. |
| No sound | Volume is too low; Incorrect input mode selected; Device not connected properly. | Increase volume on speaker and connected device; Press MODE button to select correct input; Reconnect Bluetooth device or check AUX/USB/Micro SD connections. |
| Bluetooth pairing fails | Speaker is not in pairing mode; Device is too far; Another device is already connected. | Ensure speaker is in Bluetooth mode and flashing; Move device closer to speaker; Disconnect from other Bluetooth devices. |
| TWS pairing fails | Speakers are too far apart; One speaker is already connected to a Bluetooth device. | Ensure both speakers are close to each other; Disconnect any Bluetooth devices from both speakers before initiating TWS pairing. |
| FM radio reception is poor | Weak signal. | Move the speaker to a location with better reception. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | IQ-3404BT |
| Speaker Type | Floorstanding |
| Speaker Size | Dual 4-inch woofers |
| Connectivity Technology | Bluetooth |
| Special Features | FM Radio, Light Show, True Wireless Stereo (TWS) |
| Inputs | USB, Micro SD, AUX (3.5mm), MIC IN (3.5mm) |
| Power Source | Battery Powered (Rechargeable 1800mAh) |
| Playtime | Up to 5 hours |
| Control Method | Remote, On-unit buttons |
| Product Dimensions | 6.69"D x 6.69"W x 15.15"H |
| Item Weight | 5.48 Pounds |
| Included Components | Remote, USB-C Cable, User Manual |
Warranty Information
This product comes with a limited warranty provided by Supersonic. Please refer to the warranty card included in your packaging or visit the manufacturer's website for detailed terms and conditions. Keep your purchase receipt as proof of purchase for any warranty claims.
Customer Support
If you have any questions, encounter issues, or require technical assistance with your IQ Sound IQ-3404BT Speaker System, please contact Supersonic customer support. Contact details can typically be found on the product packaging, the manufacturer's official website, or the warranty card.





