POLVCDG BDAMX-7FXH
POLVCDG Swimming Headphones BDAMX-7FXH User Manual
Model: BDAMX-7FXH | Brand: POLVCDG
Introduction
This manual provides detailed instructions for the POLVCDG IPX8 Waterproof Bone Conduction Headphones, Model BDAMX-7FXH. Please read this manual carefully before using the product to ensure proper operation and to maximize its lifespan. Keep this manual for future reference.

Image: POLVCDG Bone Conduction Headphones submerged in water, highlighting their IPX8 waterproof capability.
What's in the Box

Image: A visual representation of all items included in the POLVCDG headphone package.
- POLVCDG Bone Conduction Headphones x1
- Instruction Manual x1
- Silicone Adjustable Rope x1
- Charging Cable x1
- Earplugs x2
Setup
1. Charging the Headphones
Before first use, fully charge your headphones. Connect the magnetic charging cable to the charging port on the headphones and the other end to a USB power adapter (not included) or a computer's USB port.
- A full charge takes approximately 1.5-2 hours.
- The LED indicator will show charging status (e.g., red for charging, blue for fully charged).

Image: Illustration of the magnetic fast charging mechanism for the headphones.
2. Bluetooth Pairing (Wireless Mode)
- Ensure the headphones are powered off.
- Press and hold the Power/Multi-function button until the LED indicator flashes red and blue alternately, indicating pairing mode.
- On your device (smartphone, tablet, laptop), enable Bluetooth and search for "BDAMX-7FXH" or similar.
- Select the headphones from the list to connect. Once connected, the LED will flash blue slowly.
3. MP3 Mode Setup (For Underwater Use)
The headphones feature 32GB of built-in storage for MP3 mode, essential for underwater listening as Bluetooth signals do not transmit through water.
- Connect the headphones to your computer using the provided charging cable.
- The headphones will appear as a removable disk drive.
- Drag and drop your desired MP3 audio files into the headphone's storage folder.
- Safely eject the headphones from your computer once files are transferred.
Important: Always switch to MP3 mode when swimming or engaging in other underwater activities.

Image: Visual explanation of switching between Wireless and MP3 modes, emphasizing MP3 for underwater use.
Operating Instructions
Controls Overview
The headphones feature intuitive button controls for various functions.
| Button/Action | Function |
|---|---|
| Power/Multi-function Button (Long Press) | Power On/Off, Enter Pairing Mode |
| Power/Multi-function Button (Short Press) | Play/Pause Music, Answer/End Call |
| Volume Up (+) (Short Press) | Increase Volume |
| Volume Up (+) (Long Press) | Next Track |
| Volume Down (-) (Short Press) | Decrease Volume |
| Volume Down (-) (Long Press) | Previous Track |
| Mode Switch Button (if present, or specific button combination) | Switch between Bluetooth and MP3 Mode |
Note: Specific button locations and exact functions may vary slightly. Refer to the physical product for precise button identification.
Wearing the Headphones
Position the bone conduction transducers on your cheekbones, just in front of your ears. The band should rest comfortably behind your head. Adjust for a secure and comfortable fit.

Image: A cyclist wearing the headphones, illustrating the ergonomic and open-ear design for safety and comfort during activities.
Making and Receiving Calls
- Answer/End Call: Short press the Power/Multi-function button.
- Reject Call: Long press the Power/Multi-function button.
- Voice Assistant: Double-press the Power/Multi-function button (functionality depends on connected device).
The Environmental Noise Cancellation (ENC) technology helps ensure clear calls even in noisy environments.
Maintenance
Cleaning
- Wipe the headphones with a soft, damp cloth after each use, especially after swimming or intense workouts.
- Do not use abrasive cleaners or solvents.
- Ensure the charging port is dry before connecting the charging cable.
Storage
- Store the headphones in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid placing heavy objects on the headphones to prevent damage to the flexible frame.
Waterproofing Notes
- The headphones are rated IPX8, meaning they can be submerged in water up to two meters deep for one hour.
- For optimal performance and to prevent damage, always use MP3 mode when underwater. Bluetooth signals cannot transmit effectively in water.
- Rinse with fresh water after use in chlorinated or saltwater environments.
Troubleshooting
| Problem | Solution |
|---|---|
| Headphones won't turn on. | Ensure the headphones are fully charged. Connect to the charger and check the LED indicator. |
| Cannot pair with Bluetooth device. |
|
| No sound in MP3 mode. |
|
| Sound quality is poor or distorted. |
|
| Headphones not recognized by computer. | Try a different USB port or cable. Ensure the cable is securely connected. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | BDAMX-7FXH |
| Brand | POLVCDG |
| Connectivity Technology | Wireless (Bluetooth) |
| Wireless Communication Technology | Bluetooth 5.4 |
| Water Resistance Level | IPX8 Waterproof |
| Internal Storage | 32GB (for MP3 mode) |
| Battery Life | Up to 10 Hours |
| Audio Driver Type | Bone Conduction Driver |
| Noise Control | Environmental Noise Cancellation (ENC) |
| Earpiece Shape | Hook (Open Ear) |
| Material | Plastic, Rubber |
| Item Weight | 7.2 ounces |
| Product Dimensions | 5.27 x 2.32 x 6.1 inches |
| Frequency Range | 20Hz - 20,000Hz |
| Impedance | 10 Ohm |
| Control Method | Push Button |
| Compatible Devices | Smartphones, Laptops, Tablets, Smart Speakers |
Warranty Information
POLVCDG products typically come with a standard manufacturer's warranty. For specific warranty terms and conditions, including duration and coverage, please refer to the warranty card included in your product packaging or visit the official POLVCDG website. Keep your proof of purchase for warranty claims.
Protection plans may also be available for purchase separately. Please check with your retailer for details.
Customer Support
If you encounter any issues or have questions not covered in this manual, please contact POLVCDG customer support:
- Online Support: Visit the official POLVCDG website for FAQs, support articles, and contact forms.
- Email Support: Refer to your product packaging or the official website for the customer service email address.
When contacting support, please have your product model number (BDAMX-7FXH) and purchase information ready.
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