Wireless Earbuds User Manual

1. Introduction

Thank you for choosing the Kuizil HD65 Wireless Earbuds. These earbuds are designed to provide a high-fidelity audio experience with deep bass, environmental noise cancellation (ENC) microphone, and IPX7 waterproofing, making them ideal for sports and various outdoor activities. This manual will guide you through the setup, operation, and maintenance of your new earbuds.

2. Package Contents

Please check the package for the following items:

• Charging Case (x1)
• Wireless Earbuds (x2)
• Type-C Charging Cable (x1)
• User Manual (x1)
• Replaceable Earbud Tips (x4 pairs)

Image: Kuizil HD65 Earbuds and accessories.

3. Product Specifications

4. Product Overview

Familiarize yourself with the components and features of your HD65 Wireless Earbuds.

Image: Bluetooth 5.4 Technology for stable connection and longer transmission distance, compatible with iOS, Android, and Windows devices.

Image: Hi-Fi Stereo Sound with 14.2mm graphene diaphragm for deep bass.

Image: Ergonomic design with flexible earhooks and three sizes of ear tips (L/M/S) for a secure fit during sports. Features IPX7 waterproofing.

Image: Detailed overview of the earbuds and charging case components, including battery life indicators.

5. Setup

5.1 Initial Charge

Before first use, ensure both the earbuds and the charging case are fully charged.

• Place the earbuds into the charging slots of the charging case.
• Connect the Type-C charging cable to the charging case and a power source.
• The digital display on the charging case will flash, indicating the battery level. When fully charged, it will show "100".

5.2 Pairing with Your Phone

1. Power On & Automatic Pairing: Take both earbuds out of the charging case. They will automatically power on and attempt to pair with each other. You will hear a voice prompt "pairing". The ice blue light on the left earbud will flash slowly, and the light on the right earbud will turn off, indicating successful earbud pairing.
2. Manual Power On (if needed): If the earbuds do not connect to a device for more than 5 minutes, they will automatically turn off. To manually turn them on, press the MFB button on each earbud for about 3 seconds until you hear "Power on".
3. Connect to Phone: Enable Bluetooth on your phone. Search for "HD65" in the list of available devices and select it to connect. You should hear a voice prompt "Connected" when wearing the earbuds.
4. Connection Indicator: If the indicator light on the earbud is off, it means the earbuds are successfully connected to your phone.
5. Automatic Reconnection: By default, the earbuds will automatically connect to the last paired phone when powered on.

Image: LED digital display on the charging case and earbuds, illustrating the one-step pairing process with a smartphone.

6. Operating Instructions

6.1 Telephone Communication

6.2 Music Control

Image: Easy control with physical buttons for music and incoming calls.

6.3 Single Earbud Use

These earbuds can be used individually. To use a single earbud, simply take one earbud out of the case and connect it to your phone. If using both and you wish to switch to single mode, manually turn off one earbud or place it back in the charging case.

7. Charging

7.1 Earbuds Charging

The earbuds will only charge when correctly placed in the charging slots of the case. You can charge the case and earbuds simultaneously, or charge the case first, then the earbuds.

• The LED indicator light on the earbuds will show white when charging.
• The charging case will automatically stop charging the earbuds when they are fully charged, and the earbud indicator lights will turn off.
• While earbuds are charging in the case, the digital display bar of the case will blink. It will turn off when the earbuds are fully charged.

Image: Earbuds correctly placed in the charging case for charging, showing battery life and dimensions.

7.2 Charging Case Charging

Use the provided Type-C USB charging cable to charge the case directly. During charging, the digital display will flash and show the battery level in real-time. When fully charged, the display will show "100".

Image: Type-C charging port on the charging case.

7.3 Charging Alerts

• After prolonged use, oxidation of the magnet connectors might prevent earbuds from charging or turning on. Clean the magnet connectors on both earbuds and the charging case with an alcohol wipe to resolve this.
• When placed in the charging case, the earbuds will turn off immediately, and the case will begin charging them automatically.
• The earbuds will automatically connect to the last paired phone upon removal from the case.

8. Maintenance

• If the earbuds have not been used for more than 3 months, it is recommended to charge them.
• Always use a charger approved by FCC (Federal Communications Commission).
• Do not disassemble the earbuds.
• Children aged 12 and under should use the earbuds under adult supervision.
• Do not expose the earbuds to high or low temperatures, and avoid using them during thunderstorms.
• Avoid dropping the device or subjecting it to violent shocks. Keep the device away from fire sources and do not immerse it in water.

9. Troubleshooting (Frequently Asked Questions)

Q: Why don't these earbuds pair with my phone?

A: Ensure the earbuds are fully charged and powered on. Verify that your phone's Bluetooth is enabled. If issues persist:

1. With the earbuds powered on, perform 5 continuous and quick clicks on the MFB button to turn them off.
2. Place the earbuds back into the charging case and close the lid.
3. Wait for 1 minute, then open the charging case and attempt to reconnect the earbuds to your phone.

Q: Why does the music cut in or out?

A: First, ensure the earbuds are within 10 meters of your phone and there are no obstacles between them. If the distance is less than 10m and you still experience issues:

1. Place the earbuds back into the case and close the lid.
2. On your phone, go to Bluetooth settings and "forget" or "unpair" the "HD65" device.
3. After 10 seconds, open the charging case and reconnect the earbuds to your phone.

Q: Why won't the earbuds charge or disconnect from the phone after I put them in the case and close the lid?

A: Ensure the charging case is not in a low battery state. If the charging case battery is low, the earbuds will not charge or disconnect properly. Use the Type-C charging cable to fully charge the case.

Q: Are these earbuds sweat- and water-resistant?

A: Yes, these earbuds are sweatproof and IPX7 waterproof. However, for electronic devices, we do not recommend submerging them in water. They are not resistant to hot water, and water vapor can enter and damage the internal components.

10. User Tips

• For optimal performance and to prevent connectivity issues, always ensure both your earbuds and the charging case are adequately charged.
• If you experience persistent pairing problems, a quick reset by turning off the earbuds with 5 clicks, placing them in the case, and then re-pairing can often resolve the issue.
• Maintain a clear line of sight and close proximity (within 10 meters) between your earbuds and your connected device to avoid audio interruptions.
• While the earbuds are IPX7 waterproof, meaning they can withstand splashes and sweat, avoid full submersion or exposure to hot water and steam to protect internal components.
• Regularly clean the magnetic charging contacts on both the earbuds and the case with an alcohol wipe to ensure reliable charging.

11. Warranty & Support

For permanent replacement of damaged, defective items, or missing components, please activate your warranty by emailing amazon.seller9966@gmail.com within 15 days of purchase.

For more detailed product FAQs or customer service, please refer to the official user manual PDF available at this link.