1. Introduction
Thank you for choosing the RIOWOIS 31-inch Bluetooth TV Soundbar Speakers. This manual provides essential information for the safe and efficient use of your new soundbar. Please read it thoroughly before operation and retain it for future reference.
The RIOWOIS soundbar is designed to deliver crisp treble and powerful bass, enhancing your audio experience for TV, PC, and projectors. Its versatile connectivity options and detachable design offer convenience and flexibility.
2. Safety Information
To ensure safe operation and prevent damage, please observe the following:
- Do not expose the soundbar to rain, moisture, or extreme temperatures.
- Ensure proper ventilation; do not block any ventilation openings.
- Use only the provided power adapter.
- Do not attempt to disassemble or repair the unit yourself. Refer all servicing to qualified personnel.
- Keep the soundbar away from heat sources, direct sunlight, and strong magnetic fields.
3. Package Contents
Carefully unpack the carton and confirm that the following parts are included:
- RIOWOIS Soundbar Unit
- Remote Control
- Power Adapter
- Optical Cable
- 3.5mm-3.5mm Audio Cable (AUX)
- Wall Mounting Kit (Mount Screws)
- User Manual (Quick Start Guide)

Figure 3.1: All items included in the RIOWOIS Soundbar package.
4. Setup
4.1 Physical Placement
The soundbar can be placed on a tabletop or wall-mounted. The detachable design allows for easier transport and storage.
- Tabletop Placement: Position the soundbar on a stable, flat surface in front of your TV.
- Wall Mounting: Use the provided wall mounting kit to securely attach the soundbar to a wall below your TV. Ensure the wall can support the weight of the soundbar.

Figure 4.1: Soundbar placed on a TV stand.

Figure 4.2: Soundbar mounted on a wall.
Video 4.1: This video demonstrates the detachable design of the soundbar, showing how it can be separated into two smaller units for portability and reassembled for use.
4.2 Connecting Power
Connect the power adapter to the DC IN socket on the soundbar and then plug it into a wall outlet.
4.3 Audio Connections
The soundbar offers multiple connection options:
- HDMI-ARC: For optimal audio quality and TV remote control compatibility, connect an HDMI cable (not supplied) from your TV's HDMI ARC port to the soundbar's HDMI ARC input.
- Optical: Connect the supplied optical cable from your TV's optical output to the soundbar's OPTICAL input.
- AUX: Use the supplied 3.5mm-3.5mm audio cable to connect devices via the AUX input.
- Bluetooth 5.3: For wireless connection, enable Bluetooth on your device and pair with the soundbar.

Figure 4.3: Multiple input options on the soundbar.
4.4 Powering On and TV Audio Settings
After connecting, press the power button on the soundbar or remote control to turn it on. The indicator light will change from red to blue (Bluetooth), purple (Optical), or green (AUX) depending on the selected input mode.
To avoid audio conflicts, disable your TV's internal speakers and set the audio output to the connected external speaker (e.g., HDMI ARC or Optical).
Video 4.2: This video provides instructions on how to configure your Fire TV remote to control the soundbar, including volume and power functions.
5. Operating Instructions
5.1 Remote Control Functions
The included remote control provides full functionality for your soundbar:
- Power Button: Turns the soundbar on/off.
- BT Button: Switches to Bluetooth mode. Press and hold for approximately 2 seconds to disconnect the current Bluetooth device.
- Volume +/-: Adjusts the master volume.
- Mute: Mutes or unmutes the sound.
- EQ Modes: Select from three optimized sound modes:
Movie: Enhanced bass and surround effects for films.
Music: Balanced sound for music playback.
News: Clearer vocals for news and dialogue. - Input Selection: Dedicated buttons for OPT (Optical), ARC (HDMI-ARC), AUX, and BT (Bluetooth).

Figure 5.1: Sound modes for different content types.
5.2 On-Unit Button Controls
The soundbar also features integrated buttons for basic control:
- Power: Short press to turn on/off.
- Volume +/-: Adjusts volume.
- Mode/Source: Cycles through input modes (Optical, ARC, Bluetooth, AUX).
5.3 Compatible TV Remote Controls
When connected via HDMI-ARC, your TV remote can control the soundbar's volume and power. The soundbar is also compatible with Fire TV or TV Stick remotes. For Roku box or Roku TV compatibility, additional remotes can be provided upon request.
6. Maintenance
To maintain the performance and appearance of your soundbar:
- Clean the unit with a soft, dry cloth. Do not use liquid cleaners or aerosols.
- Avoid placing heavy objects on the soundbar.
- Keep the soundbar away from direct sunlight and high humidity.
7. Troubleshooting
If you encounter issues with your soundbar, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No Sound | Incorrect input mode selected; Cables not connected properly; TV audio output not set to external speaker. | Press the 'Mode' button on the remote/soundbar to cycle inputs; Reconnect all audio cables securely; Adjust TV audio settings to output sound via HDMI ARC or Optical. |
| Distorted Sound | Volume too high; Poor cable connection; Interference. | Lower the volume; Check and re-secure audio cables; Try a different audio cable or input method. |
| Remote Not Working | Batteries are dead or incorrectly inserted; Obstruction between remote and soundbar. | Replace batteries (2x AAA, not included); Ensure clear line of sight to the soundbar's remote sensor. |
| Bluetooth Pairing Failure | Soundbar not in pairing mode; Previous device still connected. | Ensure soundbar is in Bluetooth mode and indicator is flashing; Press and hold the BT button on the remote for 2 seconds to disconnect any previously paired device. |
8. Specifications
| Feature | Specification |
|---|---|
| Model Name | RIOWOIS Sound Bar DS6401D+ |
| Speaker Type | Soundbar |
| Mounting Type | Table Top, Wall Mount |
| Connectivity Technology | Optical, AUX, ARC, Bluetooth |
| Wireless Communication Technology | Bluetooth |
| Audio Output Mode | Surround |
| Speaker Maximum Output Power | 100 Watts |
| Frequency Response | 20 KHz |
| Tweeter Diameter | 2 Inches |
| Surround Sound Channel Configuration | 2.0 |
| Product Dimensions | 3.54"D x 31.02"W x 2.56"H |
| Item Weight | 4.73 pounds |
| Color | Black |
| Style | Detachable |
| Indoor/Outdoor Usage | Indoor |
| Manufacturer | Saiyin Electronic Co., Ltd |
9. Warranty and Support
RIOWOIS is committed to providing excellent customer service and product quality.
- Full Warranty: Your soundbar comes with a full warranty.
- Free Replacement: Enjoy free product replacement within one year of purchase.
- Free Remote Replacement: We offer free replacement services for your remote control.
- Professional Support: Our dedicated customer service team is available 24/7 to assist you.
For any inquiries or support, please contact us at: support@sineaudiocn.com

Contact us for assistance.
