Guudsoud S18 Bone Conduction Headphones User Manual

1. Introduction

Thank you for choosing the Guudsoud S18 Bone Conduction Headphones. These headphones are designed to provide a unique audio experience while maintaining environmental awareness, making them ideal for various activities including swimming, cycling, and general sports. This manual provides essential information on setup, operation, maintenance, and specifications to ensure optimal performance and longevity of your device.

The S18 headphones feature IP68 waterproofing, a built-in 32GB MP3 player, and Bluetooth 5.4 connectivity, offering versatility for both land and water-based activities.

Image: Guudsoud S18 Bone Conduction Headphones, showcasing their waterproof design.

2. Product Features

• IP68 Waterproof Rating: Designed for full immersion up to 2 meters, suitable for swimming and water sports. Can be used with swim caps, goggles, and earplugs.
• Integrated 32GB MP3 Player: Store approximately 8000 songs directly on the device. Seamlessly switch between MP3 and Bluetooth modes. Note: Bluetooth signal does not transmit effectively underwater; switch to MP3 mode for swimming.
• Lightweight Open-Ear Design: Weighing only 0.95 ounces, the bone conduction technology transmits audio through your cheekbones, allowing you to hear music while remaining aware of your surroundings. Provides a comfortable and secure fit for all-day wear.
• Bluetooth 5.4 Connectivity: Equipped with the latest Bluetooth 5.4 chip and a built-in microphone for stable connections and hands-free calls when not in water. Ideal for running, cycling, training, walking, and work.
• Long Battery Life: A quick 2-hour full charge provides up to 8 hours of continuous playback. The flexible 360° design and included adjustment strap ensure stability during intense exercise.

3. Setup Guide

3.1 Charging the Headphones

Connect the magnetic charging cable to the charging port on your S18 headphones and plug the USB end into a power source (e.g., computer USB port, USB wall adapter). A full charge takes approximately 2 hours and provides up to 8 hours of playback time.

3.2 Loading Music (MP3 Mode)

To use the integrated MP3 player, you need to transfer audio files from your computer to the headphones.

1. Download your desired audio files to your computer.
2. Connect the S18 headphones to your computer using the provided magnetic charging cable. Your computer should recognize the headphones as a removable disk drive.
3. Open the recognized disk drive and drag and drop your audio files (MP3 format recommended) into the folder on the drive.

Image: Instructions for downloading audio files to the S18 headphones.

3.3 Bluetooth Pairing (Multipoint Connection)

The S18 headphones support multipoint connection, allowing you to connect to two devices simultaneously, though only one can play audio at a time.

1. Step 1: Switch on the S18 headphones and connect them to Device A via Bluetooth.
2. Step 2: Turn off the Bluetooth on Device A.
3. Step 3: Switch on the S18 headphones again and connect them to Device B via Bluetooth.
4. Step 4: Turn on the Bluetooth on Device A. The headphones should now be connected to both devices.

Note: To switch between devices, the audio on the currently playing device must be paused. There may be a buffer of 10-20 seconds before audio switches to the other device.

Image: Visual guide for establishing a multipoint Bluetooth connection.

4. Operating Instructions

4.1 Power On/Off

Press and hold the power button (usually the multi-function button) for a few seconds until you hear an audible prompt or see an indicator light.

4.2 Mode Switching

The S18 headphones allow you to switch between Bluetooth mode and MP3 player mode. Refer to the device's buttons for specific mode switching controls. This is typically done via a dedicated button or a combination press of existing buttons.

4.3 Volume Control

Use the volume buttons (usually marked '+' and '-') on the headphones to adjust the audio level.

4.4 Playback Control

Use the control buttons to play/pause music, skip tracks forward/backward, and answer/end calls. Specific button functions are detailed in the quick start guide included with your product.

4.5 Usage Scenarios

The S18 headphones are versatile for various activities:

• Swimming: Utilize the IP68 waterproof rating and MP3 mode for underwater audio.
• Cycling: Open-ear design ensures awareness of traffic and surroundings.
• Fitness/Running: Secure fit and lightweight design for comfortable exercise.
• Work/Daily Use: Bluetooth connectivity for calls and music while staying connected to your environment.

Image: Various usage scenarios for the S18 headphones, including fitness, driving, work, and swimming.

5. Maintenance and Care

5.1 Cleaning

After use, especially after swimming or intense exercise, gently wipe the headphones with a soft, dry cloth. For stubborn dirt, a slightly damp cloth can be used. Ensure the charging port is dry before charging.

5.2 Storage

Store the headphones in a cool, dry place away from direct sunlight and extreme temperatures. Avoid placing heavy objects on the headphones to prevent damage.

5.3 Water Exposure

While the headphones are IP68 waterproof, prolonged exposure to chlorinated or saltwater may require rinsing with fresh water and thorough drying to prevent corrosion and maintain performance.

6. Troubleshooting

• No Sound/Poor Sound Quality:
  • Ensure the headphones are charged.
  • Check volume levels on both the headphones and the connected device.
  • If in Bluetooth mode, ensure the headphones are properly paired and within range of the device.
  • If using MP3 mode, ensure audio files are correctly loaded and not corrupted.
• Bluetooth Disconnection:
  • Ensure the headphones are within the effective range of your Bluetooth device (typically 10 meters/33 feet).
  • Avoid obstacles between the headphones and the device that might interfere with the signal.
  • Try unpairing and re-pairing the headphones with your device.
• Cannot Connect Underwater:
  • Bluetooth signals do not transmit effectively through water. For underwater use, you must switch the headphones to MP3 mode and use the internal 32GB storage.
• Headphones Not Turning On:
  • Ensure the headphones are fully charged.
  • Try resetting the device (refer to the quick start guide for specific reset instructions, if available).

7. Specifications

8. Warranty and Support

8.1 Manufacturer's Warranty

The Guudsoud S18 Bone Conduction Headphones come with a 1-year manufacturer's warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or normal wear and tear.

8.2 Customer Support

For any questions, technical assistance, or warranty claims, please contact Guudsoud customer support through the retailer where you purchased the product or visit the official Guudsoud website for contact information. Please have your purchase receipt and product model number (S18) ready when contacting support.