Rhyfell S18 Fit 5 Bone Conduction Headphones User Manual

1. Product Overview

The Rhyfell S18 Fit 5 Bone Conduction Headphones are designed for active lifestyles, offering an open-ear listening experience with advanced features. These headphones utilize bone conduction technology to deliver audio, keeping your ears open to ambient sounds for enhanced safety during outdoor activities. They are equipped with Bluetooth 5.4 for stable wireless connectivity and feature an IP68 waterproof rating, making them suitable for swimming and other water sports. With a built-in 32GB MP3 player, you can enjoy music offline without needing a connected device.

Figure 1.1: Key Features of Rhyfell S18 Fit 5 Headphones. This infographic highlights the dual Bluetooth and MP3 modes, up to 10 hours of battery life, lightweight 28g design, 32GB internal storage, bone conduction technology, and comfortable silicone material.

Key Features:

• Bone Conduction Technology: Delivers sound through your cheekbones, leaving your ears open.
• Bluetooth 5.4 Connectivity: Ensures a stable and efficient wireless connection with your devices.
• IP68 Waterproof Rating: Fully submersible and resistant to dust, suitable for swimming and harsh environments.
• Built-in 32GB MP3 Player: Store up to 8,000 songs for offline listening.
• Lightweight Design: Weighing only 28 grams for comfortable, extended wear.
• Long Battery Life: Up to 10 hours of playback on a single charge.
• Integrated Microphone: For hands-free calls.

2. Package Contents

Please check the package for the following items:

• Rhyfell S18 Fit 5 Bone Conduction Headphones
• Magnetic Charging Cable
• User Manual (this document)

3. Setup

3.1 Initial Charging

Before first use, fully charge your headphones. Connect the magnetic charging cable to the charging port on the headphones and plug the other end into a USB power adapter (not included) or a computer's USB port. The LED indicator will show charging status.

Important: Ensure the charging port is completely dry before connecting the charging cable to prevent damage.

3.2 Wearing the Headphones

1. Place the transducers on your cheekbones, just in front of your ears.
2. Loop the neckband over the back of your head.
3. Adjust the headphones for a secure and comfortable fit. The open-ear design ensures your ear canals remain unobstructed.

3.3 Bluetooth Pairing

1. With the headphones powered off, press and hold the power button until the LED indicator flashes red and blue, indicating pairing mode.
2. On your device (smartphone, tablet, computer), enable Bluetooth and search for available devices.
3. Select "Rhyfell S18 Fit 5" from the list of found devices.
4. Once paired, the LED indicator will turn solid blue.

3.4 MP3 Mode and Music Transfer

The headphones feature 32GB of internal storage for MP3 playback, allowing you to listen to music without a connected device.

1. To transfer music: Connect the headphones to your computer using the magnetic charging cable. The headphones will appear as a removable drive. Drag and drop your MP3 audio files into the headphone's storage folder.
2. To switch to MP3 mode: While the headphones are on, press the Mode button (refer to button layout in section 4.1) to switch between Bluetooth and MP3 modes.

Figure 3.1: Transferring Music to Built-in 32GB Storage. Connect the headphones to a computer to easily transfer your favorite audio files for offline listening.

4. Operating Instructions

4.1 Button Functions

The headphones feature intuitive button controls. (Specific button layout and functions are typically detailed in a diagram within the physical manual. Please refer to your product's included diagram for precise button locations.)

• Power Button: Press and hold to power on/off. Short press for play/pause.
• Volume Up (+): Short press to increase volume. Long press for next track.
• Volume Down (-): Short press to decrease volume. Long press for previous track.
• Mode Button: Short press to switch between Bluetooth and MP3 modes.

4.2 Music Playback

• Play/Pause: Short press the Power button.
• Next Track: Long press the Volume Up (+) button.
• Previous Track: Long press the Volume Down (-) button.

4.3 Call Management

• Answer/End Call: Short press the Power button.
• Reject Call: Long press the Power button.

4.4 Waterproof Use (IP68)

The Rhyfell S18 Fit 5 headphones are designed with an IP68 waterproof rating, making them suitable for swimming and other water-based activities. For optimal performance underwater, it is recommended to use the MP3 mode as Bluetooth signals do not transmit effectively through water.

Figure 4.1: Enjoying Music While Swimming. The IP68 rating allows for use during swimming, with the built-in MP3 player providing music without a phone.

Figure 4.2: Clear Sound Underwater. The headphones are optimized to deliver clear audio even when submerged.

5. Maintenance

5.1 Cleaning

• After use, especially after swimming in chlorinated or saltwater, rinse the headphones thoroughly with clean fresh water.
• Wipe the headphones with a soft, dry cloth.
• Do not use abrasive cleaners or solvents.

5.2 Charging Port Care

The charging port is magnetic and designed to be waterproof. However, it is critical to ensure the charging port area is completely dry before connecting the charging cable. Moisture in the charging port can lead to corrosion or damage, preventing the headphones from charging.

5.3 Storage

Store the headphones in a cool, dry place away from direct sunlight and extreme temperatures.

6. Troubleshooting

If you encounter issues with your Rhyfell S18 Fit 5 headphones, please refer to the following troubleshooting guide:

• Headphones will not power on:
  • Ensure the headphones are fully charged.
  • Press and hold the power button for a few seconds.
• Cannot pair with device:
  • Make sure the headphones are in pairing mode (LED flashing red and blue).
  • Ensure Bluetooth is enabled on your device and it is within 10 meters of the headphones.
  • Forget the device from your phone's Bluetooth list and try pairing again.
• No sound or low volume:
  • Adjust the volume on both the headphones and your connected device.
  • Ensure the headphones are properly placed on your cheekbones.
  • If in MP3 mode, ensure music files are correctly loaded.
• Charging issues:
  • Verify the charging cable is securely connected.
  • Crucially, ensure the charging port on the headphones is completely dry before connecting the cable. Moisture can prevent charging or cause damage.
  • Try a different USB power source or port.

7. Specifications

8. Warranty and Support

8.1 Warranty Information

Rhyfell products are manufactured to high-quality standards. For specific warranty details, please refer to the warranty card included with your product packaging or visit the official Rhyfell website. Keep your proof of purchase for warranty claims.

8.2 Customer Support

If you require further assistance or have questions not covered in this manual, please contact Rhyfell customer support. Contact information can typically be found on the product packaging or the official Rhyfell website.