Rulefiss Q38 Wireless Sport Earbuds User Manual

1. Introduction

Thank you for choosing the Rulefiss Q38 Wireless Sport Earbuds. These earbuds are designed to provide a high-quality audio experience with features tailored for active lifestyles. They incorporate Bluetooth 5.4 technology for stable connectivity, Hi-Fi stereo sound, and an IP7 waterproof rating, making them suitable for various activities including workouts and daily use. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your device.

2. Package Contents

Please verify that all items listed below are included in your package:

• Rulefiss Q38 Bluetooth Headphones (2 units)
• 800mAh Charging Box (1 unit)
• Soft Silicone Ear Caps (6 units: L/M/S sizes)
• USB-C Charging Cable (1 unit)
• User Manual (English, Spanish, French, etc.) (1 unit)

3. Product Overview

The Rulefiss Q38 earbuds feature an ergonomic design with earhooks for a secure fit, especially during physical activity. The accompanying charging case not only protects the earbuds but also provides extended battery life and features a dual LED display for battery status.

Figure 3.1: Rulefiss Q38 Earbuds and Charging Case

Figure 3.2: Charging Case with Dual LED Digital Display

The earbuds are equipped with a 14.2mm composite diaphragm for enhanced audio quality and integrate Bluetooth 5.4 for efficient wireless communication.

Figure 3.3: Earbud Internal Components

4. Setup

4.1 Initial Charging

Before first use, fully charge the earbuds and the charging case. Place the earbuds into the charging case and connect the USB-C cable to the charging port on the case. Connect the other end of the cable to a compatible USB power source. The LED display on the charging case will show the battery percentage, and LED bars for each earbud will flash during charging and turn off when fully charged. A full charge typically takes approximately 1.5 hours.

Figure 4.1: Battery Life Overview

4.2 Pairing with a Device

The Rulefiss Q38 earbuds utilize Bluetooth 5.4 for quick and stable connections.

Figure 4.2: Bluetooth 5.4 Technology

1. Power On: Open the charging case. The earbuds will automatically power on and enter pairing mode.
2. Activate Bluetooth: On your device (smartphone, tablet, laptop, etc.), enable Bluetooth.
3. Select Device: In your device's Bluetooth settings, search for available devices and select "Q38" from the list.
4. Confirm Connection: Once connected, your device will indicate that the earbuds are paired. The earbuds will automatically connect to the last paired device when taken out of the charging case.

5. Operating Instructions

5.1 Wearing the Earbuds

The Q38 earbuds are designed with soft, flexible earhooks to ensure a secure and comfortable fit, especially during sports or vigorous activities. Choose the ear caps that best fit your ear size (S/M/L).

Figure 5.1: Ergonomic Wearing Steps

Figure 5.2: Flexible Earhooks for Secure Fit

5.2 Touch Controls

Each earbud features a multi-function touch panel for easy control of music playback, calls, and voice assistant activation.

Figure 5.3: Touch Control Functions

6. Maintenance

Proper maintenance ensures the longevity and performance of your Rulefiss Q38 earbuds.

• Cleaning: Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth. For ear caps, remove them and clean with mild soap and water, then dry thoroughly before reattaching.
• Water Resistance: The earbuds are IP7 waterproof, meaning they can withstand sweat and rain. However, they are not designed for swimming or prolonged submersion. Ensure the charging port is dry before charging.


Figure 6.1: IP7 Waterproof Rating

• Storage: When not in use, store the earbuds in their charging case to protect them from dust and damage. Store in a cool, dry place away from extreme temperatures.
• Battery Care: To preserve battery health, avoid fully discharging the earbuds and charging case frequently. Charge them regularly, even if not in constant use.

7. Troubleshooting

If you encounter issues with your Rulefiss Q38 earbuds, refer to the following common solutions:

• Earbuds not pairing:
  • Ensure both earbuds are charged.
  • Turn off Bluetooth on your device, then turn it back on.
  • Delete "Q38" from your device's Bluetooth history and attempt to pair again.
  • Place earbuds back in the case, close the lid, wait a few seconds, then open to re-initiate pairing mode.
• Only one earbud working:
  • Ensure both earbuds are charged.
  • Try resetting the earbuds by placing them in the charging case and then taking them out.
  • If the issue persists, try re-pairing them with your device.
• No sound or low volume:
  • Check the volume level on both your device and the earbuds.
  • Ensure the earbuds are properly connected to your device.
  • Clean any debris from the earbud speakers.
• Charging case not charging:
  • Verify the USB-C cable is securely connected to both the case and the power source.
  • Try a different USB-C cable or power adapter.

8. Specifications

9. Warranty and Support

Rulefiss is committed to providing quality products and customer satisfaction.

• Warranty: The Rulefiss Q38 Wireless Sport Earbuds come with a 2-year warranty. For details regarding warranty claims or extended protection plans, please refer to your purchase documentation or contact customer support.
• Returns & Refunds: A 30-day return and refund policy is typically available. Please check with your retailer for specific terms.
• Customer Support: For any questions, technical assistance, or support needs not covered in this manual, please contact Rulefiss customer service through the retailer's platform or the official Rulefiss website.

Figure 9.1: Rulefiss Quality Service