1. Introduction
Thank you for choosing the Foxnovo SL-90 Wireless Soundbar Speaker. This manual provides essential information for setting up, operating, and maintaining your new soundbar. Please read it thoroughly to ensure optimal performance and longevity of your device.
2. What's in the Box
- Foxnovo SL-90 Wireless Soundbar Speaker
- 3.5mm Audio Cable
- USB Charging Cable
- User Manual
Image: Contents of the Foxnovo SL-90 Soundbar package, including the speaker, audio cable, USB cable, and user manual.
3. Product Overview
The Foxnovo SL-90 is a versatile soundbar designed for various audio needs. It features multiple connectivity options and a built-in battery for portability.

Image: The Foxnovo SL-90 Soundbar in a typical desktop setup, showcasing its sleek design and speaker configuration.
Control Panel and Ports
The control panel is conveniently located on the top of the soundbar, providing easy access to all functions and connection ports.

Image: Detailed view of the soundbar's top panel, illustrating the various input ports (USB, AUX, TF card, DC 5V) and control buttons (Mode, Volume/Track).
- MODE Button: Switches between Bluetooth, AUX, USB, and TF card modes.
- USB Port: For USB drive playback.
- AUX Port: For wired audio connection via 3.5mm cable.
- TF Card Slot: For TF (Micro SD) card playback.
- DC 5V Port: For charging the soundbar.
- Volume/Track Buttons: Adjust volume and navigate tracks.
4. Setup
Initial Charge
Before first use, fully charge the soundbar using the provided USB cable. Connect the USB cable to the DC 5V port on the soundbar and the other end to a USB power adapter (not included) or a computer USB port.
Placement
Place the soundbar on a stable, flat surface. For optimal sound, position it directly in front of your TV or monitor.

Image: The soundbar's suitable size for various devices, including PCs, laptops, tablets, and smartphones.
5. Operating Instructions
Power On/Off
Press and hold the MODE button to power the soundbar on or off.
Mode Selection
Press the MODE button repeatedly to cycle through available input modes: Bluetooth, AUX, USB, and TF Card.
Bluetooth Connection
- Power on the soundbar. It will automatically enter Bluetooth pairing mode (indicated by a flashing LED).
- On your device (smartphone, laptop, etc.), enable Bluetooth and search for available devices.
- Select "FOXNOVO SL-90" from the list to pair. A confirmation tone will sound upon successful connection.
Video: An official product video demonstrating the features and sound quality of the Foxnovo 20W MX1 Pro Sound Speaker (Model SL-90).
AUX (Wired) Connection
- Connect one end of the 3.5mm audio cable to the AUX port on the soundbar.
- Connect the other end to the audio output jack of your device (e.g., computer, TV, smartphone).
- Switch the soundbar to AUX mode using the MODE button.
USB/TF Card Playback
- Insert a USB drive into the USB port or a TF (Micro SD) card into the TF card slot.
- The soundbar will automatically switch to the corresponding mode and begin playing audio files. If not, press the MODE button to select the correct input.
6. Charging
The Foxnovo SL-90 features a built-in 4500mAh battery. When the battery is low, the soundbar will indicate this (e.g., via an LED indicator or voice prompt). To charge:
- Connect the provided USB charging cable to the DC 5V port on the soundbar.
- Plug the other end of the USB cable into a 5V USB power source (e.g., wall adapter, computer USB port).
- The charging indicator will illuminate during charging and turn off when fully charged.
Note: Avoid using the soundbar while charging if you experience audio interference or feedback.

Image: The soundbar being charged via its USB port, highlighting its rechargeable battery feature.
7. Maintenance
- Keep the soundbar away from water and excessive moisture.
- Clean the surface with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Avoid placing heavy objects on the soundbar.
- Store in a cool, dry place when not in use for extended periods.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound | Low battery; Incorrect input mode; Volume too low; Loose cable connection. | Charge the soundbar; Select correct input mode; Increase volume; Reconnect cables securely. |
| Bluetooth not connecting | Soundbar not in pairing mode; Device Bluetooth off; Too far from device. | Ensure soundbar is in Bluetooth mode and flashing; Turn on device Bluetooth; Move device closer (within 10m). |
| Sound distortion/static | Interference; Volume too high; Faulty audio source/cable. | Move away from other electronic devices; Lower volume; Try a different audio source or cable. |
| Soundbar not turning on | Battery completely drained. | Connect to power and allow a few minutes for charging before attempting to power on. |
9. Specifications
| Feature | Detail |
|---|---|
| Brand | Foxnovo |
| Model Number | FOXNOVO SL-90 |
| Speaker Maximum Output Power | 20 Watts |
| Connectivity Technology | Bluetooth, USB, 3.5mm AUX, TF Card |
| Audio Output Mode | Stereo |
| Mounting Type | Tabletop |
| Speaker Type | Soundbar |
| Battery Capacity | 4200 Milliamp Hours |
| Item Dimensions (D x W x H) | 3.15"D x 16.54"W x 3.54"H |
| Compatible Devices | Laptop, Personal Computer, Smartphone, Television |

Image: Dimensional drawing of the soundbar, indicating its length, height, and depth.
10. Warranty & Support
The Foxnovo SL-90 Wireless Soundbar Speaker comes with a limited warranty. Please refer to the warranty card included in your package for specific terms and conditions.
For technical support, troubleshooting assistance, or warranty claims, please contact Foxnovo customer service through the retailer where you purchased the product or visit the official Foxnovo website for contact information.
Please retain your proof of purchase for warranty purposes.