POLVCDG X9 Bone Conduction Earphones User Manual

1. Introduction

Thank you for choosing the POLVCDG X9 Bone Conduction Earphones. These earphones are specifically designed for active lifestyles, offering an open-ear listening experience, IPX8 waterproofing, and built-in memory, making them perfect for swimming, running, cycling, and other sports. Please read this manual carefully to ensure proper use and optimal performance of your device.

Figure 1: POLVCDG X9 Bone Conduction Earphones - Designed for active use.

2. Package Contents

Please check the box for the following items:

• Outer Envelope
• Inner Box
• POLVCDG-X9 Bone Conduction Earphones
• Accessory Box
• Instruction Manual
• Magnetic Charging Cable
• POLVCDG Elastic Strip (for secure fit)

Figure 2: POLVCDG X9 Package Contents.

3. Product Overview

Key Features:

• Bone Conduction Technology: Delivers sound through your cheekbones, keeping your ears open to ambient sounds.
• IPX8 Waterproof Rating: Fully submersible, suitable for swimming and water sports.
• 32GB Built-in Memory: Store thousands of songs directly on the device for use without a phone.
• Bluetooth Connectivity: Seamlessly connect to your smartphone or other Bluetooth-enabled devices.
• Long Battery Life: Up to 10 hours of playback on a single charge.
• Secure & Comfortable Fit: Open-ear design with an adjustable elastic strip ensures stability during intense activities.
• Multi-function Button: Easy control for music playback, calls, and mode switching.

Figure 3: Six Major Functions of POLVCDG X9.

Components:

Refer to the product diagram in the included quick start guide for specific button locations.

• Power/Multi-function Button
• Volume Up (+) Button
• Volume Down (-) Button
• Microphone
• Magnetic Charging Port
• LED Indicator Light

4. Setup

4.1 Initial Charging

1. Connect the magnetic charging cable to the charging port on the earphones.
2. Connect the other end of the USB cable to a USB power adapter (not included) or a computer's USB port.
3. The LED indicator will show a solid red light during charging.
4. Once fully charged (approximately 2 hours), the LED indicator will turn solid blue.

4.2 Power On/Off

• Power On: Long press the Power/Multi-function Button until the LED indicator flashes blue.
• Power Off: Long press the Power/Multi-function Button until the LED indicator turns off.

4.3 Bluetooth Pairing

1. With the earphones powered off, long press the Power/Multi-function Button until the LED indicator flashes red and blue alternately. This indicates pairing mode.
2. On your smartphone or Bluetooth device, enable Bluetooth and search for available devices.
3. Select "POLVCDG X9" from the list of devices.
4. Once connected, the LED indicator will flash blue slowly.

5. Operating Instructions

5.1 Music Playback

• Play/Pause: Short press the Power/Multi-function Button.
• Volume Up: Short press the Volume Up (+) Button.
• Volume Down: Short press the Volume Down (-) Button.
• Next Song: Long press the Volume Up (+) Button.
• Previous Song: Long press the Volume Down (-) Button.

5.2 Call Handling

• Answer/End Call: Short press the Power/Multi-function Button.
• Reject Call: Long press the Power/Multi-function Button.

5.3 Mode Switching (Bluetooth / TF Card)

• Switch Mode: Double-click the Power/Multi-function Button to toggle between Bluetooth mode and TF Card (MP3 player) mode.
• TF Card Playback Mode: In TF Card mode, quadruple-click the Power/Multi-function Button to switch between sequential play and random (shuffle) play. The earphones will remember your last selected playback mode.

Figure 4: Music Playback Mode Control.

5.4 Song Download (TF Card Mode)

1. Power off the earphones.
2. Connect the earphones to your computer using the magnetic charging cable.
3. The computer will recognize the earphones as a removable disk.
4. Drag and drop your MP3/WAV/FLAC/AAC audio files into the earphone's storage folder.
5. Safely eject the device from your computer before disconnecting the cable.

6. Swimming Mode

For optimal performance and safety during swimming:

• Switch to TF Card (MP3 player) mode before entering the water, as Bluetooth signals do not transmit well underwater.
• Ensure the earphones are securely fitted. Use the provided elastic strip if needed to prevent movement.
• After swimming in seawater or chlorinated water, always rinse the earphones thoroughly with fresh water.

7. Maintenance

• Cleaning: After each use, especially after swimming or heavy sweating, wipe the earphones with a soft, dry cloth. Pay special attention to cleaning the magnetic charging contacts to prevent corrosion.
• Storage: Store the earphones in a cool, dry place away from direct sunlight and extreme temperatures.
• Charging: If the earphones are not used for an extended period, charge them at least once a month to maintain battery health. Do not use the earphones while they are charging.
• Avoid Disassembly: Do not attempt to disassemble or modify the earphones, as this will void the warranty and may cause damage.

8. Troubleshooting

8.1 No Power

• Ensure the earphones are fully charged.
• Long press the Power/Multi-function Button to power on.

8.2 Cannot Pair with Bluetooth

• Ensure the earphones are in pairing mode (red and blue lights flashing alternately).
• Make sure Bluetooth is enabled on your device and it's within range (10 meters).
• Turn off Bluetooth on your device and turn it back on, then try pairing again.
• Restart both the earphones and your device.

8.3 No Sound

• Check the volume level on both the earphones and your connected device.
• Ensure the earphones are correctly paired and connected.
• If in TF Card mode, ensure audio files are properly loaded and not corrupted.
• Try switching between Bluetooth and TF Card modes.

8.4 Charging Issues

• Ensure the magnetic charging cable is properly connected to both the earphones and the power source.
• Check if the charging contacts on the earphones are clean and free from debris.
• Try using a different USB port or power adapter.

9. Specifications

10. User Tips

• Underwater Sound Quality: Many users report that the sound quality, especially bass, is enhanced when used underwater.
• Ambient Awareness: The open-ear design is excellent for activities like running or cycling where being aware of your surroundings is crucial for safety.
• Microphone for Calls: The microphone performs best in quiet environments. For important calls, consider a quieter setting.
• Secure Fit: Utilize the adjustable elastic strip for a more secure fit, especially during vigorous activities or swimming, to minimize movement and maintain sound quality.
• Music Transfer: Transferring music is as simple as dragging and dropping files onto a USB drive. The shuffle mode is a convenient feature for varied playlists.

11. Warranty and Support

For detailed warranty information, technical support, or further inquiries, please refer to the official product documentation or contact your retailer. A PDF version of the user manual may contain additional information.