Introduction
This manual provides comprehensive instructions for the setup, operation, maintenance, and troubleshooting of your SIMOLIO Wireless Headphones for TV, Model SM-829D1. These headphones are designed to enhance your TV listening experience with features like clear dialogue mode, boosted volume, and a convenient charging stand.

Image: SIMOLIO Wireless Headphones, Model SM-829D1, resting on their charging and transmitter stand. The headphones are black with comfortable earcups and an adjustable headband.
What's in the Box
Upon unboxing your SIMOLIO Wireless Headphones, please verify that all the following components are included:
- Transmitter / Charging Stand
- Wireless Headphones (1 unit)
- Optical Audio Cable
- RCA Audio Cable
- 3.5mm AUX Cable
- US Power Adapter
- Charging Cable for Headphones
- Spare Rechargeable Battery (pre-installed in charging stand)

Image: A visual representation of all components included in the product packaging: the headphones, the transmitter/charging stand, various audio cables (optical, AUX, RCA), a power adapter, and a charging cable.
Setup Guide
Follow these steps to set up your SIMOLIO Wireless Headphones for optimal performance.
1. Connect the Transmitter to Power
- Connect the US Power Adapter to the "POWER IN DC/5V" port on the back of the transmitter/charging stand.
- Plug the power adapter into a wall outlet. The power indicator light on the transmitter will illuminate.

Image: The transmitter stand connected to a power outlet via its power adapter, indicating proper power supply.
2. Connect the Transmitter to your TV
The SIMOLIO headphones support multiple audio input options. Choose the connection method that best suits your TV.
- Optical Connection (Recommended for Digital Audio):
Connect one end of the Optical Audio Cable to the "OPTICAL OUT" port on your TV and the other end to the "OPTICAL IN" port on the transmitter. Ensure the protective caps are removed from the cable ends before connecting.
- RCA Connection (Analog Audio):
Connect the red and white plugs of the RCA Audio Cable to the corresponding "AUDIO OUT" (red for right, white for left) ports on your TV. Connect the 3.5mm end of the RCA cable to the "AUX IN" port on the transmitter.
- 3.5mm AUX Connection (Headphone Jack):
Connect one end of the 3.5mm AUX Cable to the headphone jack (usually marked with a headphone icon) on your TV. Connect the other end to the "AUX IN" port on the transmitter.

Image: A diagram illustrating how to connect the SIMOLIO transmitter to a TV using Optical, AUX (3.5mm), or RCA audio cables. It also shows the optional bypass connection to a soundbar or AV receiver.
3. Configure TV Audio Output (if necessary)
For some TVs, especially when using the optical connection, you may need to adjust the TV's audio output settings to PCM (Pulse Code Modulation) format. Refer to your TV's user manual for specific instructions.

Image: A screenshot of a TV's audio settings menu, highlighting the "PCM" option under "Digital Sound Out," which may need to be selected for proper audio transmission.
4. Power On Headphones and Transmitter
Once connected, simply turn on both the transmitter and the headphones. They will automatically connect without complex pairing procedures.

Image: The SIMOLIO headphones and transmitter stand are shown powered on, with blue waves indicating a wireless connection between them, ready for use.
Operating Instructions
Understand the various functions and controls of your SIMOLIO Wireless Headphones to optimize your listening experience.
Clear Dialog Mode & Tone Adjustment
The headphones feature voice clarity technology to make conversations stand out. You can adjust the tone to suit your preferences with three hearing profile options:
- D+ (Clear Dialog Plus): Enhanced clarity for speech.
- D (Clear Dialog): Standard clear dialogue.
- S (Standard): Balanced audio for general listening.

Image: A couple comfortably watching television, with one person wearing the SIMOLIO headphones, illustrating the benefit of clear dialogue technology for an improved viewing experience.

Image: A person wearing the SIMOLIO headphones while watching TV, with text overlays indicating features like 3 tone presets, independent volume control, and ambient sound amplifier mode, allowing for personalized audio.
Volume Control & Balance Adjustment
- Independent Volume Control: Adjust the headphone volume directly on the headset to your preferred level without affecting the TV's main volume.
- Left/Right Balance Control: This feature is particularly useful for individuals with different hearing levels in each ear, allowing you to adjust the audio balance between the left and right channels.

Image: A woman wearing the headphones, pointing to her ear, with an icon indicating the left-right balance adjustment feature, emphasizing personalized sound for different hearing needs.
Ambient Sound Amplifier (MIC Button)
Press the MIC button on the headphones to activate the ambient sound amplifier. This allows you to hear your surroundings and engage in conversations without needing to remove the headphones.

Image: A couple watching TV, with one person wearing the headphones. A circle highlights the "MIC ON" feature, indicating the ability to hear ambient sounds without removing the headphones, facilitating conversation.
By-Pass Feature
The "by-pass" feature allows the headphones to work simultaneously with your existing soundbar or stereo AV receiver. This means you can listen to the TV at your preferred volume through the headphones, while others can hear the audio directly through the sound system.

Image: A diagram illustrating the "By Pass to Soundbar" feature, showing how the TV's audio output can be simultaneously routed to the SIMOLIO transmitter (for headphones) and a soundbar or AV receiver.
Maintenance
Proper maintenance ensures the longevity and optimal performance of your SIMOLIO Wireless Headphones.
Charging the Headphones
The headphones feature a built-in rechargeable and replaceable battery, providing up to 12 hours of operation. The transmitter stand doubles as a charging station.
- Place the headphones onto the charging stand, ensuring the charging contacts align.
- The charging indicator light on the stand will show the charging status. A full charge typically takes about 3 hours.
A spare battery is included and can be charged simultaneously in a dedicated slot on the base, ensuring uninterrupted listening.

Image: The SIMOLIO charging stand with the headphones placed on top for charging. An inset shows the charging contacts on the headphones, and another inset displays the spare rechargeable battery, highlighting the ultra-easy charging and extended listening features.
Cleaning
- Wipe the headphones and transmitter with a soft, dry cloth.
- Do not use abrasive cleaners or solvents.
- Avoid exposing the devices to excessive moisture.
Troubleshooting
If you encounter issues with your SIMOLIO Wireless Headphones, refer to the following common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| No Sound from Headphones |
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| Audio Distortion or Static |
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| Headphones Not Charging |
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Specifications
| Feature | Detail |
|---|---|
| Model Name | SIMOLIO Wireless Headphones for TV SM-829D1 |
| Connectivity Technology | 2.4G Wireless (RF) |
| Wireless Range | Up to 100ft / 30m |
| Audio Latency | 30 Milliseconds (No lip-sync delay) |
| Battery Life | Up to 12 Hours |
| Charging Time | Approximately 3 Hours |
| Headphones Jack | 3.5 mm Jack (for AUX input on transmitter) |
| Noise Control | Sound Isolation |
| Frequency Range | 20Hz-20KHz |
| Earpiece Shape | Over-Ear |
| Material | Faux Leather (earcups) |
| Color | Black |
| Item Weight (Headphones + Transmitter) | 1.05 Kilograms (2.31 pounds) |
| Product Dimensions | 10 x 2 x 2.7 inches (Transmitter base dimensions) |
| Included Components | Headphones, Transmitter, Optical Cable, RCA Audio Cable, 3.5mm AUX Cable, US Power Adapter, Charging Cable for Headphones |
Warranty and Support
SIMOLIO products are designed for quality and reliability. For warranty information and customer support, please refer to the contact details provided with your product packaging or visit the official SIMOLIO website.
For further assistance, you may also contact the seller directly through the platform where the product was purchased.





