Introduction
Thank you for choosing POLVCDG IPX8 Waterproof Bone Conduction Headphones. These headphones are designed to provide a superior audio experience with open-ear comfort, allowing you to stay aware of your surroundings while enjoying music or calls. Featuring IPX8 waterproofing and 32GB of internal storage, they are ideal for various activities, including swimming, running, and cycling. Please read this manual carefully to ensure proper use and maintenance of your device.
Product Overview
Key Features
- Open-Ear Design: Ensures environmental awareness and comfort.
- IPX8 Waterproof Rating: Submergible up to two meters for one hour, suitable for swimming.
- Dual Modes: Wireless Bluetooth and 32GB MP3 internal storage for phone-free listening.
- Environmental Noise Cancellation (ENC): For clear calls in noisy environments.
- Long Battery Life: Up to 10 hours of playback on a single charge.
- Lightweight & Ergonomic: Weighs 32 grams with a flexible titanium frame for a secure and comfortable fit.
What's in the Box

Image: The product packaging displaying the bone conduction headphones, instruction manual, silicone adjustable rope, charging cable, and earplugs.
- Bone Conduction Headphones x1
- Instruction Manual x1
- Silicone Adjustable Rope x1
- Charging Cable x1
- Earplugs x2 (for swimming)
Setup
1. Initial Charging
Before first use, fully charge your headphones. Connect the magnetic charging cable to the charging port on the headphones and plug the USB end into a compatible power adapter (not included) or computer USB port. The LED indicator will show charging status and turn off when fully charged. A full charge typically takes approximately 1.5-2 hours.
2. Wearing the Headphones
Place the headphones over your ears with the transducers resting on your cheekbones, just in front of your ears. The neckband should rest comfortably behind your head. Adjust for a snug but comfortable fit. The flexible titanium frame adapts to various head shapes.

Image: A cyclist wearing the bone conduction headphones, illustrating the secure and open-ear placement for active use.
3. Loading MP3 Files (for MP3 Mode)
To use the 32GB internal storage for MP3 playback:
- Connect the headphones to your computer using the magnetic charging cable.
- The headphones will appear as a removable disk drive on your computer.
- Drag and drop your desired MP3 audio files into the headphone's storage folder.
- Safely eject the device from your computer before disconnecting the cable.
Operating Instructions
Power On/Off
- Power On: Press and hold the Power/Multi-function button for 3 seconds until the LED indicator flashes and you hear a voice prompt.
- Power Off: Press and hold the Power/Multi-function button for 5 seconds until the LED indicator turns off and you hear a voice prompt.
Bluetooth Pairing
- Ensure the headphones are powered off.
- Press and hold the Power/Multi-function button for 5-7 seconds until the LED indicator flashes red and blue alternately, indicating pairing mode.
- On your device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "POLVCDG Headphones" from the list. Once connected, the LED indicator will flash blue slowly, and you will hear a confirmation voice prompt.
Switching Between Wireless (Bluetooth) and MP3 Modes

Image: An illustration highlighting the dual playback modes: Wireless (Bluetooth) for fast connection and MP3 mode with 32GB built-in storage for up to 8,000 songs. A warning notes that Bluetooth signals cannot be transmitted underwater, requiring MP3 mode for swimming.
Press the Mode Switch button (usually indicated by an 'M' or a distinct icon) to toggle between Bluetooth mode and MP3 mode. A voice prompt will confirm the current mode.
Controls
- Play/Pause: Short press the Power/Multi-function button.
- Volume Up: Short press the Volume + button.
- Volume Down: Short press the Volume - button.
- Next Track: Long press the Volume + button.
- Previous Track: Long press the Volume - button.
- Answer/End Call: Short press the Power/Multi-function button during an incoming call.
- Reject Call: Long press the Power/Multi-function button during an incoming call.
- Activate Voice Assistant: Double-press the Power/Multi-function button.
Water Usage Guidelines (IPX8 Waterproof)

Image: A swimmer underwater wearing the bone conduction headphones, highlighting their IPX8 waterproof rating. A crucial note reminds users to switch to MP3 mode when swimming, as Bluetooth signals do not transmit effectively underwater.
These headphones are rated IPX8, meaning they can be submerged in water up to two meters deep for one hour. To ensure optimal performance and prevent signal loss:
- Always switch to MP3 mode when swimming or engaging in any underwater activity. Bluetooth signals cannot reliably transmit through water.
- Ensure the charging port is clean and dry before and after water exposure.
- Rinse the headphones with fresh water after use in chlorinated or saltwater, then dry thoroughly.
Maintenance
- Cleaning: Wipe the headphones with a soft, damp cloth. Do not use harsh chemicals or abrasive materials.
- Drying: After water exposure, gently shake off excess water and allow the headphones to air dry completely before charging or storing.
- Storage: Store in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the headphones frequently. Charge regularly, even if not in use for extended periods.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Headphones won't power on | Low battery | Charge the headphones fully. |
| Cannot pair via Bluetooth | Not in pairing mode; device Bluetooth off; too far from device | Ensure headphones are in pairing mode (red/blue flashing LED). Turn on Bluetooth on your device. Move closer to your device. |
| No sound in Bluetooth mode | Volume too low; not connected; wrong audio output selected | Increase volume. Re-pair headphones. Check audio output settings on your device. |
| No sound in MP3 mode | No MP3 files loaded; volume too low | Load MP3 files onto the headphones. Increase volume. |
| Poor sound quality underwater | Using Bluetooth mode underwater | Switch to MP3 mode for underwater use. Bluetooth signals do not transmit well in water. |
| Charging issues | Cable not connected properly; dirty charging port; faulty cable/adapter | Ensure magnetic cable is securely attached. Clean charging port. Try a different USB adapter or port. |
Specifications
- Model Name: BDAMX-7FMC
- Item Model Number: BDAMX-7FXH
- Connectivity Technology: Wireless (Bluetooth 5.4)
- Water Resistance Level: IPX8 Waterproof
- Internal Storage: 32GB
- Battery Life: Up to 10 Hours
- Noise Control: Environmental Noise Cancellation (ENC)
- Frequency Range: 20Hz - 20,000Hz
- Impedance: 10 Ohm
- Item Weight: 7.2 ounces (approx. 32 grams)
- Product Dimensions: 5.27 x 2.32 x 6.1 inches
- Material: Plastic, Rubber
- Control Method: Push Button
- Compatible Devices: Smartphones, Tablets, Laptops, Telephones, Smart Speakers, MP3 Players
Warranty Information
POLVCDG products are covered by a limited warranty against manufacturing defects from the date of purchase. Please retain your proof of purchase for warranty claims. The warranty does not cover damage caused by misuse, accidents, unauthorized modifications, or normal wear and tear. For specific warranty terms and conditions, please refer to the documentation included with your purchase or contact customer support.
Customer Support
If you encounter any issues or have questions regarding your POLVCDG headphones, please contact our customer support team. You can typically find contact information (email, phone, or website) on the product packaging or on the official POLVCDG brand store page on Amazon.
For further assistance, please visit the POLVCDG Store on Amazon.





