1. Introduction and Overview
This manual provides comprehensive instructions for the Serounder Replacement Remote Control. This remote is specifically designed to function as a direct replacement for the original remote controls of compatible Sony Sound Bar models, requiring no complex programming or setup.
Compatible Models:
- Sony Sound Bar HT-CT390
- Sony Sound Bar HT-RT3
- Sony Sound Bar SA-CT390
- Sony Sound Bar SA-WCT390
The remote control is constructed from high-quality ABS material, ensuring durability and resistance to wear for long-term use.

Image: The remote control's durable ABS construction, designed for longevity.
2. Setup
2.1 Battery Installation
The Serounder Replacement Remote Control requires two (2) AAA batteries (not included) for operation. Please follow these steps for proper battery installation:
- Locate the battery compartment cover on the back of the remote control.
- Slide the cover downwards or press the latch to open the compartment.
- Insert two AAA batteries, ensuring the positive (+) and negative (-) terminals align correctly with the markings inside the compartment.
- Slide the battery compartment cover back into place until it clicks securely.

Image: Open battery compartment for AAA battery installation.
2.2 Initial Use
After installing the batteries, the remote control is ready for immediate use. No additional programming, pairing, or complex setup procedures are required. Simply point the remote at your compatible Sony Sound Bar and press the power button to confirm functionality.
3. Operating Instructions
To operate your sound bar, point the remote control directly towards the sound bar's infrared (IR) receiver. Press the desired function button to control your device.

Image: Detailed view of the remote control buttons.
3.1 Key Functions
- Power Button: Turns the sound bar on or off.
- Input: Selects the audio input source.
- Dimmer: Adjusts the brightness of the sound bar's display.
- Menu/Back/Enter: Navigates through the sound bar's menu options.
- Volume (+/-): Increases or decreases the master volume.
- SW (+/-): Adjusts the subwoofer volume.
- Clear Audio+/Voice: Enhances audio clarity or voice.
- Playback Controls (Play/Pause, Skip Forward/Backward): Controls media playback.
- Sound Field: Cycles through various sound modes.
- Night: Activates or deactivates night mode for reduced dynamic range.
3.2 Remote Control Distance
The effective operating distance for this remote control is typically greater than 8 meters (approximately 26 feet). Please note that the actual control distance may vary depending on the specific sound bar model, environmental conditions, and any obstructions between the remote and the sound bar's sensor.

Image: Illustration of the remote control's effective operating distance.
4. Maintenance
4.1 Battery Replacement
To ensure optimal performance, replace the AAA batteries when the remote control's response becomes inconsistent, weak, or stops working entirely. Always replace both batteries simultaneously with new ones.
4.2 Cleaning
Wipe the remote control with a soft, dry cloth to remove dust and fingerprints. Avoid using liquid cleaners, solvents, or abrasive materials, as these can damage the remote's surface or internal components.
4.3 Storage
Store the remote control in a dry place, away from direct sunlight, high humidity, and extreme temperatures. If the remote will not be used for an extended period, it is recommended to remove the batteries to prevent leakage and potential damage.
5. Troubleshooting
5.1 Remote Not Responding
- Check Batteries: Ensure that the two AAA batteries are inserted correctly with the positive (+) and negative (-) terminals aligned as indicated.
- Replace Batteries: If the batteries are old or depleted, replace them with a fresh pair of AAA batteries.
- Clear Obstructions: Make sure there are no objects blocking the line of sight between the remote control and the sound bar's infrared (IR) receiver.
- Aim Correctly: Ensure you are pointing the remote control directly at the sound bar.
5.2 Reduced Sensitivity
If the remote control becomes less responsive or requires multiple presses for commands, it is often an indication of low battery power. Replace the batteries with new ones. After replacing, test all functions to ensure the remote control operates as expected.
6. Specifications
| Feature | Detail |
|---|---|
| Model Number | Serounderqegn3ivc9s |
| Material | High-quality ABS |
| Power Source | 2 x AAA batteries (not included) |
| Dimensions (L x W x H) | Approximately 6.22 x 1.26 x 0.67 inches (158 x 32 x 17 mm) |
| Weight | Approximately 1.41 ounces (40 grams) |
| Compatibility | Sony Sound Bar models HT-CT390, HT-RT3, SA-CT390, SA-WCT390 |

Image: Remote control dimensions.
7. Warranty and Support
Our products undergo strict quality inspection before shipment. In the event of any damage or if the product is unsuitable for use, please contact our customer support directly. We are committed to responding to your inquiries and concerns within 24 hours to provide assistance.
Manufacturer: Serounder
For further assistance or inquiries, please refer to the contact information provided with your purchase or visit the official Serounder brand store.