Introduction
This user manual provides comprehensive instructions for the SIMOLIO 824D2 2.4G Wireless Headphones and the SIMOLIO 737D2 Bluetooth Wireless Headphones, designed for TV watching. This bundle offers two distinct wireless solutions, allowing simultaneous use on different televisions without signal interference. These headphones are engineered to provide clear audio without lip-sync delay, enhancing your TV viewing experience.
Image: The SIMOLIO 824D2 2.4G wireless headphones (left) and the SIMOLIO 737D2 Bluetooth wireless headphones (right) with their respective charging stands.
Package Contents
Upon unboxing, please verify that all components are present:
- SIMOLIO 824D2 2.4G Wireless Headphones (1 pair)
- SIMOLIO 824D2 Transmitter/Charging Stand (1 unit)
- SIMOLIO 737D2 Bluetooth Wireless Headphones (1 pair)
- SIMOLIO 737D2 Transmitter/Charging Stand (1 unit)
- Optical Audio Cable (1 unit)
- 3.5mm Audio Cable (1 unit)
- RCA Audio Cable (1 unit)
- Power Adapters (2 units)
- User Manual (this document)
- Spare Battery for 824D2 (1 unit, typically located in the base of the charging stand)
Product Features
The SIMOLIO dual wireless headphone system offers advanced features for an optimized TV audio experience:
- Dual Wireless Systems: Includes both 2.4GHz and Bluetooth wireless headphones, allowing independent use on separate TVs without interference.
- Audio Bypass Function (737D2 Bluetooth): The Bluetooth headphone set features a "By-Pass" function, enabling simultaneous audio output to both the headphones and an external soundbar or stereo AV receiver from the same TV audio port. This allows personal listening while others hear through speakers.
- Comfortable Design: Over-ear headphones with protein earmuffs and a retractable, soft-padded headband ensure lasting comfort. Full-sealed noise-isolating ear pads reduce external noise.
- Integrated Transmitter/Charging Stand: Both headphone sets come with a 2-in-1 transmitter and charging stand for convenient charging and storage.
- Extended Battery Life: The 824D2 in-ear headphones provide approximately 14 hours of playtime per charge, while the 737D2 over-ear Bluetooth headphones offer up to 40 hours of playtime on a full charge. The 824D2 includes a spare battery for continuous use.
- No Lip-Sync Delay: Both systems deliver high-quality sound perfectly synchronized with on-screen video, ensuring an immersive viewing experience.
- Voice Highlighting & Tone Control (824D2): Features designed to enhance dialogue clarity.
- Balance Control (824D2): Allows adjustment of audio balance between left and right channels.
- Ambient Sound Mode (824D2): One-button switching to ambient mode for awareness of surroundings.
Image: Comparison highlighting SIMOLIO's technology for clear dialogue at gentle volumes versus normal headphones that require high volume, potentially worsening hearing.
Setup and Connection
Follow these steps to connect your SIMOLIO wireless headphones to your television or audio source.
1. Choose Your Audio Output Method
The SIMOLIO transmitters support multiple audio output types. Select the one available on your TV or AV device:
- Digital Optical Audio Out: Recommended for best digital audio quality. Ensure your TV's audio format is set to PCM for digital optical connection.
- 3.5mm Headphone Jack: Common on many TVs and audio devices.
- RCA Audio Out (Red/White jacks): Standard analog audio output.
Image: Diagram showing compatibility of SIMOLIO SM-823D, SM-824D1, and SM-824D2 models with Digital Optical, 3.5mm, and RCA audio outputs.
Important Note: For Digital Optical connection, the Audio Format of your TV/related AV devices must be set to PCM.
Only one transmitter is needed to connect to your TV/cable box etc. There are three audio cords included for option, in the end, only one of them is needed to complete the installation. One transmitter can support multiple headsets simultaneously; if you need an additional headset, please visit our storefront on Amazon.
2. Connect the Transmitter
Connect the chosen audio cable from your TV's audio output port to the corresponding input port on the SIMOLIO transmitter (Optical IN or AUX IN). Then, connect the power adapter to the transmitter and plug it into a power outlet.
Image: Illustration of connecting the SM-824D2 transmitter to a Smart TV's optical audio output. The transmitter is shown receiving audio and wirelessly transmitting to the headphones.
Image: Close-up of the SIMOLIO transmitter's rear ports, showing Optical and AUX inputs and outputs, and power input. It indicates compatibility with TVs having Optical, AUX (3.5mm), or RCA audio out, and Smart TVs with built-in Bluetooth. It also clarifies that it does not work with TVs having only HDMI or only AUDIO IN ports.
3. Using the Bypass Function (737D2 Bluetooth Headphones)
The 737D2 Bluetooth headphone system allows you to share the TV's audio output with an existing soundbar or stereo AV receiver. Connect the TV's audio output to the transmitter's input, and then connect the transmitter's audio output (Optical or AUX) to your soundbar or receiver's input. This enables simultaneous audio through both the headphones and your external speaker system.
Image: Diagram illustrating the "By Pass to Soundbar" feature, showing the SIMOLIO Bluetooth headphone transmitter connected between a TV and a soundbar, allowing audio to be heard through both the headphones and the soundbar simultaneously.
Operating Instructions
Charging the Headphones
Place the headphones onto their respective charging stands. Ensure the charging contacts align properly. An indicator light on the stand or headphones will confirm charging status. The 824D2 in-ear headphones' battery provides 14 hours playtime on a charge, and the 737D2 over-ear Bluetooth headphones' built-in battery provides up to 40 hours playtime on a full charge.
Image: The SIMOLIO 737D2 Bluetooth headphones resting on their charging stand, with an overlay indicating "Hassle-free charging, 40Hrs battery life."
Image: A pair of SIMOLIO 737D2 Bluetooth over-ear headphones neatly placed on their charging stand.
Powering On/Off and Pairing
- Power On: Press and hold the power button on the headphones until the indicator light illuminates.
- Power Off: Press and hold the power button until the indicator light turns off.
- Automatic Pairing: The headphones are designed to automatically pair with their respective transmitters once both are powered on and within range.
Volume Control
Adjust the volume using the dedicated volume controls located on the headphones. Each headphone set has independent volume control.
Special Features (824D2 In-Ear Headphones)
- Voice Highlighting: Enhances dialogue for clearer understanding.
- Tone Control: Adjust audio tone to suit personal preference.
- Balance Control: Fine-tune the audio balance between left and right ears.
- Ambient Sound Mode: Press the designated button to activate ambient sound mode, allowing you to hear your surroundings without removing the headphones.
Image: A couple comfortably watching TV with SIMOLIO headphones, emphasizing the "No Audio Delay" feature for synchronized sound.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the headphones and transmitter. Do not use abrasive cleaners or solvents.
- Storage: When not in use, store the headphones on their charging stands to keep them charged and organized.
- Battery Care: For optimal battery life, avoid fully discharging the headphones frequently. Recharge them regularly.
- Environmental Conditions: Avoid exposing the devices to extreme temperatures, humidity, or direct sunlight.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No Sound |
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| Audio Delay (Lip-Sync Issues) |
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| Poor Sound Quality / Static |
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| Headphones Not Charging |
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Specifications
| Feature | Detail |
|---|---|
| Model Names | 824D2 (2.4GHz), 737D2 (Bluetooth) |
| Connectivity Technology | Wireless - 2.4GHz, Wireless - Bluetooth |
| Wireless Communication Technology | Bluetooth (4.2), 2.4GHz |
| Included Components | Charging Stand, Over Ear Headphones (737D2), In Ear Headphones (824D2) |
| Compatible Devices | Televisions, Soundbars |
| Control Type | Media Control, Remote |
| Frequency Range (2.4GHz) | 2.400 to 2.4835 GHz |
| Battery Life (824D2) | Up to 14 hours playtime |
| Battery Life (737D2) | Up to 40 hours playtime |
| Audio Driver Type | Dynamic Driver |
| Ear Placement | Over Ear (737D2), In Ear (824D2) |
| Noise Control | Sound Isolation |
| Color | Black (737D2), White/Black (824D2) |
Warranty and Support
SIMOLIO products are designed for reliability and performance. For specific warranty details, please refer to the warranty card included with your purchase or visit the official SIMOLIO website. If you encounter any issues or require technical assistance, please contact SIMOLIO customer support:
- Email: support@simolio.com
- Online Support: Visit the SIMOLIO store on Amazon or their official website for FAQs and additional resources.
When contacting support, please have your product model number (824D2, 737D2) and purchase information ready.