POLVCDG H50 Bone Conduction Sports Earphones

1. Introduction

Thank you for choosing the POLVCDG H50 Bone Conduction Sports Earphones. These earphones are designed for active lifestyles, featuring IPX8 deep waterproofing, 32GB built-in memory for offline music, and a comfortable open-ear design. This manual provides essential information for setting up, operating, and maintaining your earphones to ensure optimal performance and longevity.

2. Package Contents

Please check the package for the following items:

• POLVCDG H50 Bone Conduction Earphones
• User Manual
• Magnetic Charging Wire
• USB Type-C Adapter
• Accessory Box
• POLVCDG Elastic Strip

3. Product Overview

The POLVCDG H50 earphones feature an ergonomic design with easily accessible control buttons. The open-ear design ensures comfort and awareness of your surroundings, while the liquid silicone material provides a skin-friendly fit.

Button Functions

The earphones are equipped with multi-functional control buttons for easy operation:

• Volume -
• Power button
• Volume +

4. Specifications

The following table details the technical specifications of the POLVCDG H50 earphones:

5. Setup

5.1 Initial Charging

The earphones use a built-in rechargeable battery. For the first use, the battery must be fully charged. When the voice prompt "didi" indicates low battery, it's time to charge the earphones.

1. Connect the magnetic charging cable to the magnetic charging port of the earphones.
2. The earphones will be fully charged in approximately 2 hours.
3. During charging, the red breathing light will remain on. Once fully charged, the blue breathing light on the right will remain on.
4. Suggested charger specifications: Output voltage: DC5V+/-0.25V, Output current: 100mA-500mA. Using a charger greater than 5V may cause overheating and damage to the battery or motherboard.

5.2 Power On/Off

• Power On: Long press the Power button for 3 seconds. The blue and red lights on the right will flash alternately.
• Power Off: Long press the Power button for 5 seconds. The red light will flash, and then the earphones will power off.

5.3 Bluetooth Pairing

1. Enter Pairing State: The earphones automatically enter pairing mode when powered on. The blue and red breathing lights on the right will flash alternately.
2. Pairing: On your device (smartphone, tablet, computer), open the Bluetooth settings and search for available devices. Select "H50" from the list.
3. Once connected successfully, the earphones are ready for use.
4. Wireless Long-Range Disconnection: If the earphones disconnect due to being out of range, the red and blue breathing lights on the right will flash alternately.

5.4 Multi-Device Connection

The H50 supports connecting to two devices simultaneously:

1. Connect the earphones to Device A.
2. Turn off the Bluetooth function on Device A. The earphones will enter a waiting state.
3. Connect the earphones to Device B.
4. Turn on the Bluetooth function on Device A again. The earphones should now be connected to both Device A and Device B simultaneously.

6. Operating Instructions

6.1 Call Management

• Answer/End Call: Press the Power button once.
• Reject Incoming Call: Long press the "Volume +" button for 2 seconds during an incoming call.

6.2 Music Playback

• Play/Pause: Press the Power button once.
• Next Song: Double-click the "Volume +" button.
• Previous Song: Double-click the "Volume -" button.
• Volume Up: Press the "Volume +" button once.
• Volume Down: Press the "Volume -" button once.

6.3 Voice Assistant

• Wake Up Voice Assistant: Long press the "Volume -" button for 2 seconds to enter voice mode.

6.4 Breathing Light (Night Light)

The H50 earphones feature a breathing light for enhanced visibility during night activities.

• Turn On/Off: In wireless or TF music modes, press the Power button three times in a row to toggle the left and right breathing lights on or off.

6.5 TF Card (MP3) Mode

The earphones have 32GB of built-in memory for offline music playback.

1. Switch to TF Card Mode: Double-click the Power button while in wireless playback mode. The breathing light will turn off, and you will hear a "TF card mode" prompt. The blue breathing light on the right will light up for 3 seconds, then flash once every 5 seconds.
2. Song Download:
   • Connect the earphones to your computer via the magnetic charging cable. When the disk is being read, the red and blue breathing lights on the right will light up simultaneously.
   • Open the disk drive on your computer.
   • Import audio files (MP3/WAV/FLAC/APE/WMA formats supported) to the disk.
3. Memory Function: If you switch from TF card mode to wireless mode and then back to TF card mode, the earphones will continue playing the current song from where it left off.
4. Call Handling in TF Mode: Music playback will resume after an incoming call ends.
5. Restart Behavior: After powering off and restarting, the earphones will switch back to Bluetooth pairing mode.

6.6 Language Switching

• When the device is powered on without a wireless connection, long press the "Volume +" button to switch between Chinese and English. The default language is English.

6.7 Factory Reset

• In any power-on state, press the Power button 5 times. After a "dudu" sound, the pairing information will be cleared, and the earphones will be restored to factory settings.

7. Maintenance

7.1 Cleaning

• After each exercise session, wipe any water from the surface of the earphones, especially around the magnetic charging port. Promptly clean this area to prevent sweat and saltwater corrosion, which can affect the product's lifespan.
• If the earphones have been exposed to seawater or saltwater, rinse the charging magnetic part with fresh water immediately after use and dry thoroughly.

7.2 Storage

• If the earphones will not be used for a long time, charge them at least once a month to maintain battery health.
• Store the product away from fire sources, heat sources, freezing sources, and chemicals.

8. Troubleshooting

8.1 Common Issues and Solutions

• Earphones not powering on: Ensure the battery is charged. Long press the power button for 3 seconds.
• Cannot pair via Bluetooth: Ensure earphones are in pairing mode (red and blue lights flashing alternately). Check your device's Bluetooth settings and try reconnecting. Perform a factory reset if issues persist.
• Music not playing from TF card: Ensure the earphones are in TF card mode (double-click power button). Verify that audio files are in a supported format (MP3/WAV/FLAC/APE/WMA) and correctly transferred to the 32GB memory.
• Low battery alert: The red breathing light flashes once every second, and a notification sound reminds you every minute. Charge the earphones immediately.

8.2 Important Warnings

• Magnetic Charging: Ensure the magnetic charging cable is correctly aligned with the positive and negative poles of the charging port. Incorrect alignment can prevent charging or even cause a short circuit.
• Battery Disposal: The rechargeable battery must be disposed of properly for recycling. Do not put the battery into fire to avoid explosion.
• Disassembly: Do not disassemble any part of the product without permission. If a defect is found, stop using the product immediately and contact the seller for after-sales service.
• Physical Damage: Avoid violent impact, disassembly, and extrusion of the product.

9. User Tips

• Optimal Sound: While bone conduction offers open-ear listening, ensure the transducers are placed correctly on your cheekbones for the best audio experience.
• Night Safety: Utilize the breathing light feature during evening runs or rides to enhance your visibility to others.
• Offline Music: Pre-load your favorite playlists onto the 32GB memory for uninterrupted music during activities where Bluetooth connectivity might be unreliable (e.g., swimming, remote areas).
• Comfort Fit: Adjust the elastic strip for a secure yet comfortable fit, especially during high-intensity sports.
• Voice Assistant: Familiarize yourself with the voice assistant activation for hands-free control, useful when your hands are occupied.

10. Frequently Asked Questions (FAQ)

• Q: Can I use these earphones for swimming?
  A: Yes, the POLVCDG H50 earphones have an IPX8 waterproof rating, making them suitable for swimming, showering, and other water sports. Remember to rinse with fresh water after exposure to saltwater.
• Q: How do I switch between Bluetooth and MP3 (TF card) mode?
  A: Double-click the Power button to toggle between Bluetooth and TF card playback modes.
• Q: What audio formats does the built-in memory support?
  A: The 32GB built-in memory supports MP3, WAV, FLAC, APE, and WMA audio formats.
• Q: How long does the battery last?
  A: The earphones provide approximately 8-10 hours of playback time at 50% volume on a full charge.
• Q: Can I connect the earphones to multiple devices?
  A: Yes, the H50 supports multi-device connection, allowing you to link to two devices simultaneously.

11. Warranty & Support

For warranty information, technical support, or any issues not covered in this manual, please refer to the official product page or contact POLVCDG customer service directly. You can also find additional documentation and support on the seller's website.

A PDF version of the user manual is available for download: POLVCDG H50 User Manual (PDF)