1. Introduction
Thank you for choosing the SOULION R90 Bluetooth Computer Speakers. This manual provides detailed instructions for setting up, operating, and maintaining your speaker to ensure optimal performance and longevity. Please read this manual thoroughly before using the product.

Front view of the SOULION R90 speaker, showcasing its sleek black design with a central rotary knob and LED light strip.
2. Package Contents
Please verify that all items listed below are included in your package:
- SOULION R90 Speaker
- USB Cable (for power)
- 3.5mm AUX Cable (for audio)
- User Manual
3. Product Overview
3.1. Key Features
- Dual Full-Range Speakers: Designed to elevate your audio experience with clear and powerful sound.
- Versatile Connectivity: Supports both 3.5mm AUX and Bluetooth V5.3 connections.
- Dynamic LED Lighting: Features 4 modes of colorful LED light effects (Flowing, Rhythm, Breathing, Monochromatic) to enhance your listening and viewing experience.
- Easy Controls: Intuitive rotary knob for volume control and dedicated buttons for mode switching and light effects.
- USB Powered: Conveniently powered via a standard USB port.
- Compact Design: Space-saving design fits perfectly under most monitors.
3.2. Controls and Indicators

Diagram illustrating the control layout of the SOULION R90 speaker, highlighting the 'M' button, rotary knob, RGB light button, USB power cable, and 3.5mm AUX cable.
- "M" Button:
- Click to switch between AUX and Bluetooth Mode.
- Long press for 3 seconds to power on/off.
- Rotary Knob: Rotate to adjust volume (+/-).
- RGB Light Button:
- Click to switch LED light mode or turn lights on/off.
- Long press for 3 seconds to wipe off & reset Bluetooth connection.
- USB Powered Cable: Connects to a USB port for power.
- 3.5mm AUX Cable: Connects to an audio output jack for AUX mode.
3.3. Speaker Components

Exploded view of the SOULION R90 speaker, showing its internal dual full-range speaker components designed for enhanced audio.
The SOULION R90 features a dual-speaker sound system with 1.8-inch full-range drivers, designed to deliver clear and balanced audio.
4. Setup Guide
The SOULION R90 speaker offers two primary connection methods: AUX mode and Bluetooth mode. Both modes require the speaker to be powered via USB.

Visual guide showing the two primary connection methods for the SOULION R90 speaker: AUX mode via USB and 3.5mm cables for PC/Laptop, and Bluetooth mode for Tablet/Mobile devices, both requiring USB power.
4.1. AUX Mode Setup (for PC/Laptop)
- Plug the USB connector into a USB port on your computer for power.
- Plug the 3.5mm audio connector into the headphone jack on your computer.
- Press the "M" button on the speaker to switch to "Aux Mode" if it's not already in this mode.
- Adjust the volume using the rotary knob on the speaker.
4.1.1. Windows Setup

Screenshot and instructions for setting up the SOULION R90 speaker on a Windows computer, detailing how to select 'Realtek High Definition Audio' as the output device.
To ensure audio output through the speaker on Windows:
- Click the speaker icon in your system tray.
- Choose "Realtek High Definition Audio" (or similar audio output related to your 3.5mm jack) as the audio output device.
- Alternatively, go to Control Panel/System Preferences > Sound Settings and select "Realtek High Definition Audio" as the output. Save changes.
4.1.2. Mac Setup

Screenshot and instructions for setting up the SOULION R90 speaker on a Mac computer, detailing how to select 'R90' or 'External Headphones' as the audio output in System Preferences.
To ensure audio output through the speaker on Mac:
- Plug the USB connector into a USB port on your computer for power.
- Plug the 3.5mm connector into the headphone jack on your computer.
- Go to Control Panel/System Preferences > Sound Settings.
- Choose "R90" or "External Headphones" as the audio output. Save changes.
4.2. Bluetooth Mode Setup (for Mobile/Tablet/PC)
The SOULION R90 features built-in Bluetooth V5.3 technology for wireless connection.
- Ensure the speaker is powered via the USB cable.
- Press the "M" button on the speaker to switch to "Bluetooth Mode". The LED light will indicate Bluetooth pairing readiness.
- On your smartphone, tablet, or PC, enable Bluetooth and search for available devices.
- Select "R90" from the list of devices to connect.
- Once connected, the speaker will indicate a successful pairing.
5. Operation
5.1. Power On/Off
- Long press the "M" button for 3 seconds to power the speaker on or off.
5.2. Volume Control

Rotate knob clockwise to increase volume.

Rotate knob counter-clockwise to decrease volume.
- Rotate the central knob clockwise to increase volume.
- Rotate the central knob counter-clockwise to decrease volume.
5.3. Switching Modes (AUX/Bluetooth)

Press the 'M' button to switch between AUX and Bluetooth modes.
- Click the "M" button to toggle between AUX and Bluetooth input modes.
5.4. LED Light Control

Press the light button to cycle through light modes or turn lights on/off.
- Click the RGB Light Button to cycle through the 4 dynamic light modes (Flowing, Rhythm, Breathing, Monochromatic) or to turn the lights off.
5.5. Reset Bluetooth Connection
- Long press the RGB Light Button for 3 seconds to wipe off and reset the current Bluetooth connection. This is useful if you are experiencing connection issues or want to pair with a new device.
6. Troubleshooting
If you encounter issues with your SOULION R90 speaker, please refer to the following common solutions:

Troubleshooting guide for the SOULION R90 speaker, providing solutions for common issues like no sound or connection problems.
- No Sound / Speaker Not Working:
- Ensure you are not trying to use two audio output devices on your computer simultaneously.
- Verify that "R90" or the appropriate audio output (e.g., "Realtek High Definition Audio" or "External Headphones") is selected as the audio output device on your computer/device.
- Confirm that both the computer's volume and the R90 speaker's volume are turned up (try setting both to maximum initially).
- Try plugging the USB or 3.5mm AUX jack into different ports on your computer, especially the back ports for desktops.
- Test the speaker with another device to determine if the issue is with the speaker or the original device.
- If in Bluetooth mode, try switching to AUX mode and back to Bluetooth to re-establish connection.
- Bluetooth Connection Issues:
- Ensure the speaker is in Bluetooth pairing mode (indicated by the LED light).
- Long press the RGB Light Button for 3 seconds to reset the Bluetooth connection on the speaker, then try pairing again.
- Remove "R90" from your device's Bluetooth paired devices list and attempt to pair again.
- Ensure the speaker is within the 10-meter Bluetooth range of your device.
7. Technical Specifications

Rear view of the product packaging, displaying detailed specifications.
| Feature | Specification |
|---|---|
| Model Name | R90-BK |
| Speaker Type | Multimedia Soundbar |
| Connectivity Technology | Auxiliary, Bluetooth V5.3 |
| Audio Input Mode | AUX/BT Connection |
| Speaker Size | 1.8 Inches |
| Frequency Response | 140Hz-18KHz |
| Input Sensitivity | 90 dB |
| Power Source | Corded Electric (USB Powered) |
| Input Voltage | 5 Volts (DC) |
| Speaker Maximum Output Power | 6 Watts |
| Audio Output Mode | Mono (2.0 Channel Configuration) |
| Bluetooth Range | 10 Meters (33 feet) |
| Product Dimensions | 12.75"W x 2.92"D x 2.93"H (32.38cm x 7.41cm x 7.45cm) |
| Item Weight | 1.23 pounds (0.56 Kilograms) |
| Material | Acrylonitrile Butadiene Styrene (ABS), Composite |
| Color | Black |
| Control Method | Touch (Buttons), Rotary Knob |
| Manufacturer | Shenzhen Soulion Technology Co., LTD |
8. Warranty and Support
8.1. Warranty Information
The SOULION R90 speaker comes with a Limited Warranty. Please refer to the warranty card included in your package or contact customer support for specific terms and conditions.
8.2. Customer Support
For any questions, technical assistance, or warranty claims, please contact SOULION customer support through the following channels:
- Online Support: https://linktr.ee/soulionsupport
- Refer to the contact information provided on the product packaging or the official SOULION website.





