POLVCDG H70 Pro Bone Conduction Swimming Earphones User Manual

1. Introduction

Thank you for choosing the POLVCDG H70 Pro Bone Conduction Swimming Earphones. This manual provides important information on how to set up, operate, and maintain your headphones. Please read it carefully before use and keep it for future reference.

1.1 Safety Precautions

• Do not soak the headphones in seawater or saltwater for extended periods. After use, rinse with fresh water and dry the magnetic charging part.
• If not used for a long time, charge the headphones at least once a month.
• Do not disassemble any part of the product. If you find the product defective, stop using it immediately and contact the seller for assistance.
• After each exercise, wipe any water from the surface of the headphones, especially the magnetic charging port, to prevent sweat and saltwater corrosion.
• Keep the product away from fire, heat sources, freezing temperatures, and chemicals. Avoid violent impact, disassembly, and extrusion of the product.
• Use a charger with an output of 5V/1A or less. Charging with higher voltage may cause the headphones to overheat and potentially damage the battery or motherboard.

2. Package Contents

Please check the package for the following items:

• POLVCDG H70 Pro Bone Conduction Headphones
• Magnetic Charging Cable
• User Manual (this document)
• Carrying Case (may vary by package)

Image: POLVCDG H70 Pro headphones and accessories including charging cable and user manual.

3. Product Overview

The POLVCDG H70 Pro features an open-ear design for comfort and awareness of surroundings, making it ideal for various sports activities.

Image: Diagram showing the Volume -, Power button, and Volume + controls on the headphones.

3.1 Key Components

• Bone Conduction Transducers: Deliver sound through your cheekbones, leaving your ears open.
• Ear Hooks: Provide a secure and comfortable fit.
• Magnetic Charging Port: For convenient and waterproof charging.
• Indicator Light: Displays status (power, pairing, charging, low battery).
• Multi-function Buttons: Control power, volume, playback, calls, and voice assistant.

4. Setup

4.1 Initial Charging

1. Before first use, fully charge the headphones.
2. Connect the magnetic charging cable to the charging port on the headphones.
3. Connect the other end of the cable to a USB power adapter (5V/1A recommended) or a computer USB port.
4. The right red indicator light will remain on during charging. A full charge takes approximately 2 hours.
5. Once fully charged, the blue indicator light will remain on.
6. A 'drip' sound and a flashing red indicator light (once per second) indicate low battery.

Image: Magnetic charging cable connecting to the headphones.

4.2 Bluetooth Pairing

1. Power On: Long press the power button for 3 seconds. The right blue light will stay on for 3 seconds, then the right red and blue lights will flash alternately, indicating pairing mode.
2. On your device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
3. Select "H70 Pro" from the list of available devices to connect. Once connected, a voice prompt will confirm the successful pairing.
4. If Bluetooth disconnects (e.g., out of range), the red and blue indicator lights will flash alternately.

4.3 Multi-Device Connection

1. Connect to mobile phone A and then turn off Bluetooth on mobile phone A.
2. The headphones will enter a waiting state. Connect them to mobile phone B.
3. Turn on Bluetooth on mobile phone A again. The headphones can now be connected to both phone A and phone B simultaneously.

4.4 TF Card (MP3) Mode Setup

1. Connect the headphones to your computer using the magnetic charging cable. The red and blue indicator lights on the right will light up simultaneously while the disk is being read.
2. Open the removable disk that appears on your computer.
3. Drag and drop your audio files (WAV, MP3, AAC, WMA, FLAC, M4A, ALAC formats are supported) into the disk folder.
4. Safely eject the headphones from your computer.

5. Operating Instructions

5.1 Basic Controls

5.2 Switching Between Bluetooth and TF Card Mode

• While in Bluetooth mode, double-click the Power button to switch to TF card playback. The left and right blue indicator lights will flash once per second, accompanied by a voice prompt.
• To switch back to Bluetooth mode, double-click the Power button again.
• The headphones will remember the last played song when switching modes.

5.3 Breathing Light Modes

The H70 Pro features two breathing light modes for enhanced visibility during night activities:

• Steady-on Mode: The lights remain constantly lit.
• Breathing Light Mode: The lights gently pulse.

To turn on/off the breathing lights (left and right) in wireless (Bluetooth) or TF music modes, press the Power button three times in a row.

Video: Demonstrates the product features, including light modes, flexibility, waterproofing, and charging.

6. Maintenance

• After using the headphones in water (especially seawater or saltwater), rinse them thoroughly with fresh water and dry the magnetic charging contacts to prevent corrosion.
• Wipe the surface of the headphones dry after each use, particularly after exercise, to remove sweat and moisture.
• Store the headphones in a cool, dry place away from direct sunlight and extreme temperatures.
• If the headphones will not be used for an extended period, ensure they are charged at least once a month to maintain battery health.

7. Troubleshooting

7.1 Common Issues and Solutions

• Headphones not powering on: Ensure the battery is charged. Long press the power button for 3-5 seconds.
• Cannot pair with device: Make sure the headphones are in pairing mode (red and blue lights flashing alternately). Turn off and on Bluetooth on your device, then try pairing again. Ensure the headphones are not connected to another device.
• No sound or low volume: Check the volume levels on both the headphones and your connected device. Ensure the headphones are properly positioned on your cheekbones.
• Charging issues: Ensure the magnetic charging cable is correctly aligned with the charging port. The magnetic connection has positive and negative poles; ensure mutual adsorption for proper charging. If repulsion occurs, it will not charge and may cause a short circuit. Use a compatible 5V/1A charger.
• TF card not recognized: Ensure the TF card is inserted correctly. If connecting to a computer, ensure the magnetic cable is properly connected and the drive appears. Try reformatting the TF card if issues persist.
• Volume resets to high on power cycle: This behavior may be by design or a specific unit characteristic. Adjust volume after powering on.
• Strong vibration at high volume: Bone conduction technology transmits sound through vibrations. Strong vibrations at high volumes are normal. Reduce volume if uncomfortable.

If you encounter persistent issues not covered here, please refer to the official user manual PDF or contact customer support.

8. Specifications

9. User Tips

• Battery Life: Be aware that battery life can be significantly shorter (e.g., around 1 hour) when listening to music at maximum volume. For longer use, consider moderate volume levels.
• Open-Ear Design: The bone conduction technology allows you to hear your surroundings, which is a safety advantage for outdoor sports. However, this also means sound can be audible to others nearby, especially at higher volumes.
• Durability: The headphones are designed to be durable for swimming and sports. Proper maintenance, such as rinsing after saltwater exposure, will extend their lifespan.
• Comfort: The lightweight and flexible design contributes to comfortable wear, even for extended periods.

10. Warranty and Support

For detailed warranty information, technical support, or to report a defective item, please contact the seller directly. You may also refer to the comprehensive user manual PDF for additional details: View User Manual (PDF).