Introduction
This manual provides detailed instructions for the MUSICOZY Bluetooth 5.4 Module & Speakers, designed for seamless integration with MUSICOZY Bluetooth Sleep Masks and Headbands. Please read this manual carefully to ensure proper use, installation, and maintenance of your product.
What's Included
Your package contains the following items:
- 1 * Bluetooth Module Replacement Kit
- 1 * Charging Cable

Image: The MUSICOZY Bluetooth module, two speakers, and a charging cable, representing the contents of the kit.
Key Features
- Compatibility: Designed for seamless integration with MUSICOZY Ice Silk Bluetooth Sleep Mask and all MUSICOZY Bluetooth headbands.
- Advanced Bluetooth 5.4 Technology: Offers ultra-fast pairing, stable connections, and enhanced range. Supports high-quality LHDC and LDAC audio codecs for rich sound.
- Exceptional Sound Quality: Equipped with 40mm composite drivers for immersive listening.
- ENC Noise Cancellation: Dual-microphone Environmental Noise Cancellation for crystal-clear communication during calls.
- Long-Lasting Battery Life: Up to 14 hours of continuous talk or music playback on a single charge (1-2 hours charging time).
- Durable Design: Features a flexible, durable cord and a sturdy Type-C USB charging port.

Image: An exploded view of a MUSICOZY speaker, highlighting its internal structure for HD stereo sound.

Image: A diagram showcasing the benefits of advanced Bluetooth technology, including reduced power consumption and stable connection.
Setup & Installation
Easy to Disassemble Internal Parts
- First, gently take out the built-in left speaker from the sleep mask or headband.
- Then, carefully take out the middle Bluetooth module and the right speaker.
- Ensure not to pull too hard when replacing internal parts to avoid kinks and breakage of wires.

Image: Visual instructions for disassembling the Bluetooth module and speakers from a sleep mask and headband.
Easy to Install the Bluetooth Module Kit
- Insert the right speaker through the opening in the lower left corner of the sleep mask or headband.
- Insert the Bluetooth module horizontally so that its buttons align with the corresponding positions on the sleep mask or headband.
- Place the left speaker into the sleep mask or headband.
- Do not pull hard when replacing internal parts to prevent wires from kinking and breaking.

Image: Visual instructions for installing the Bluetooth module and speakers into a sleep mask and headband.

Image: The Bluetooth module and speakers displayed with various compatible MUSICOZY sleep masks and headbands, illustrating product compatibility.
Operation
How to Connect Your Bluetooth Device
- Ensure Bluetooth is turned off on your phone or other devices you wish to connect.
- Long press the "ON/OFF" button on the Bluetooth module until the red/blue light flashes, indicating it is in pairing mode.
- Turn on Bluetooth on your phone, search for the device named "musiCozy", and select it to connect.
- Once paired, you can directly listen to music or answer calls through the Bluetooth sleep mask or headband.

Image: A visual guide showing the charging duration for extended play time and the Bluetooth pairing process on a smartphone.
Control Functions
The Bluetooth module features intuitive buttons for easy control:
- Play/Pause/Answer/Hang Off/Redial: Central button.
- Next Track/Volume Up: '+' button.
- Previous Track/Volume Down: '-' button.

Image: A diagram detailing the control buttons and dimensions of the MUSICOZY Bluetooth module.
Maintenance
To ensure the longevity and optimal performance of your MUSICOZY Bluetooth Module and Speakers, please follow these maintenance guidelines:
- Cleaning: If your sleep mask or headband requires washing, always remove the Bluetooth module and speakers first. Do not wash the electronic components.
- Handling Wires: The small wires connecting the speakers to the control module are delicate. Handle them gently during removal and installation to prevent kinking or breakage.
- Charging Port: Use the provided charging cable and ensure the Type-C USB port is clean and free of debris before charging.
- Storage: Store the module and speakers in a dry place away from extreme temperatures and direct sunlight when not in use.
Troubleshooting
If you encounter issues with your MUSICOZY Bluetooth Module, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Low battery. | Charge the module for 1-2 hours using the provided charging cable. |
| Cannot connect to Bluetooth. | Bluetooth not in pairing mode; phone Bluetooth off; interference. | Ensure the module is in pairing mode (flashing red/blue light). Turn off and on your phone's Bluetooth. Move closer to the device. |
| Poor sound quality or no sound. | Speakers improperly placed; low battery; connection issue. | Adjust speaker position within the mask/headband. Charge the module. Re-pair the Bluetooth connection. |
| Wires appear damaged or broken. | Rough handling during installation/removal. | Handle the module and speakers with care, especially the connecting wires, during installation and removal. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | GH01 |
| Bluetooth Version | 5.4 |
| Battery Life | Up to 14 Hours (talk/music playback) |
| Charging Time | 1-2 Hours |
| Bluetooth Range | 10 Meters |
| Audio Driver Size | 40mm |
| Control Type | Button, App |
| Weight | 1.44 ounces |
| Compatible Devices | MUSICOZY Bluetooth Sleep Mask & Headband |
Warranty & Support
MUSICOZY is committed to quality and customer satisfaction. This product is backed by an unconditional 365-day refund policy.
For any questions, concerns, or support needs, please contact our dedicated customer service team. We are here to assist you with any issues you may encounter.
You can find more information and contact details on the official MUSICOZY brand store: MUSICOZY Store on Amazon.





