1. Introduction
Thank you for choosing the Gd28 Bluetooth Earphones. These innovative clip-on, non-in-ear headphones are designed for comfort, stability, and high-quality audio, making them ideal for business, sports, fitness, and daily use. Featuring Bluetooth 5.3 technology, they offer a stable connection and clear sound. This manual will guide you through the setup, operation, and maintenance of your new earphones.
Video: Product overview showcasing the design, wearing style, and key features of the Gd28 Bluetooth Earphones.
2. Setup
2.1. Package Contents
The package includes:
- 1 x Gd28 Bluetooth Earphone (Black)
- 1 x Gd28 Bluetooth Earphone (White)
- 1 x Charging Cable (Type-C)

Image: The bundle includes two Gd28 earphones, one black and one white.
2.2. Charging the Earphones
Before first use, fully charge your earphones. The Gd28 earphones feature a Type-C charging interface.
- Connect the provided Type-C charging cable to the charging port on the earphone.
- Connect the other end of the cable to a USB power source (e.g., computer, wall adapter).
- The indicator light will show charging status (refer to the indicator light section for details).
- Once fully charged, disconnect the cable.
2.3. Wearing the Earphones
The Gd28 earphones are designed for a comfortable, non-in-ear, clip-on fit, utilizing bone conduction technology for a painless experience even during long wear.
- Gently clip the earphone onto your ear, ensuring the sound outlet is aimed at your ear canal.
- Adjust for a secure and comfortable fit. The silicone tail is flexible and painless.

Image: A person wearing the clip-on earphone, demonstrating the comfortable, non-in-ear design.

Image: Earphones worn on ear, highlighting the bone conduction technology for comfort and IPX7 waterproof rating.
2.4. Bluetooth Pairing
The earphones use Bluetooth 5.3 for a stable and efficient connection.
- Ensure the earphone is charged and powered on.
- Activate Bluetooth on your device (smartphone, tablet, etc.).
- Search for available Bluetooth devices.
- Select "Gd28" from the list of devices.
- Once connected, you will hear a confirmation tone, and the indicator light will change (refer to the indicator light section).

Image: Diagram of a Bluetooth 5.3 chip, illustrating the advanced connectivity.
3. Operating Instructions
3.1. Power On/Off
- Power On: Press and hold the multifunction key until the indicator light flashes.
- Power Off: Press and hold the multifunction key until the indicator light turns off.
3.2. Multifunction Key Controls
The Gd28 earphones feature a convenient one-touch multifunction key for easy control of music and calls.
- Short press once: Play/pause music, answer/end calls.
- Long press: Reject incoming calls.
- Double click: Play next song.
- Triple click: Callback last dialed number.

Image: Control instructions for the multifunction key, illustrating various press actions and their corresponding functions.
3.3. Volume Control
The earphones support volume control directly from the device. Adjust the volume using your connected smartphone or tablet.
3.4. Voice Assistant
The Gd28 earphones have a built-in voice assistant. Refer to your device's instructions for activating and using its voice assistant features with connected Bluetooth devices.
3.5. Sound Transmission
These earphones utilize DT4.0 directional sound transmission, which detects the shape of the ear canal and automatically adjusts the sound beam. This ensures efficient sound transmission into the ear canal while effectively reducing 99% of sound leakage, providing a private listening experience without blocking ambient sounds.

Image: Diagram explaining the DT4.0 directional sound transmission technology.
4. Maintenance
4.1. Cleaning
- Wipe the earphones with a soft, dry, lint-free cloth.
- Do not use abrasive cleaners, solvents, or aerosol sprays.
- Avoid getting moisture into any openings.
4.2. Storage
- Store the earphones in a cool, dry place away from extreme temperatures and direct sunlight.
- When not in use for extended periods, ensure they are fully charged before storing and recharge them periodically to maintain battery health.
4.3. Water Resistance
The Gd28 earphones are IPX7 waterproof, meaning they are resistant to sweat and rain. They are suitable for sports and outdoor activities. However, they are not designed for swimming or submersion in water.

Image: Woman showering, demonstrating the earphones' resistance to water for daily life and exercise.
5. Troubleshooting
5.1. Earphones not pairing
- Ensure the earphones are charged and powered on.
- Make sure Bluetooth is enabled on your device.
- Move the earphones closer to your device.
- Turn off and on the earphones and try pairing again.
- If previously paired, try forgetting the device on your phone's Bluetooth settings and re-pairing.
5.2. No sound or low volume
- Check the volume levels on both the earphones and your connected device.
- Ensure the earphones are properly paired and connected.
- Try playing different audio sources to rule out a problem with the media file.
5.3. Charging issues
- Ensure the charging cable is securely connected to both the earphone and the power source.
- Try using a different Type-C cable or USB power adapter.
- Check if the charging port on the earphone is clean and free of debris.
5.4. Unstable connection
- Ensure there are no obstacles between the earphones and your device.
- Move away from other wireless devices that might cause interference.
- Keep the earphones within the maximum wireless range (10-20 meters).
6. Specifications
| Feature | Specification |
|---|---|
| Brand Name | DIXSG |
| Model | Gd28 |
| Style | Ows ear clip headphones |
| Communication | Wireless (Bluetooth, RF) |
| Bluetooth Version | 5.3 |
| Vocalism Principle | Bone Conduction |
| Active Noise-Cancellation | Yes |
| Control Button | Yes |
| Volume Control | Yes |
| With Microphone | Yes |
| Waterproof | Yes (IPX7) |
| Support APP | Yes |
| Connectors | Type C |
| Battery Capacity | 450mAh |
| Impedance Range | up to 32 Ω |
| Maximum wireless range | 10m-20m |
| Voice assistant built-in | Yes |
| NFC Technology | Yes |
| Sound Isolating | Yes |
| Material | PVC, Plastic, Silica Gel |
| Dimensions (Width x Depth x Height) | 30mm x 65mm x 40mm |
| Weight | 50g |
| Certification | CE, FCC |
| Origin | Mainland China |

Image: Detailed dimensions of the Gd28 earphone.
7. User Tips
- Awareness of Surroundings: The non-in-ear design and directional sound transmission allow you to enjoy audio while remaining aware of your environment, which is great for outdoor activities and commuting.
- Comfort for Long Wear: The lightweight (5g) and ergonomic clip-on design ensures comfort and prevents pain even during extended use.
- Secure Fit: The ear clip support and skin-friendly silicone material provide a stable fit, preventing the earphones from falling off during vigorous activities.
- Easy Controls: Familiarize yourself with the one-touch multifunction key for quick access to music and call controls without needing to reach for your phone.
- Water Resistance: Take advantage of the IPX7 waterproof rating for workouts and light rain, but avoid submerging the earphones in water.

Image: Visual representation of the healthy, painless, and secure fit of the earphones.

Image: The 5g lightweight body of the earphones, emphasizing comfort.
8. Warranty and Support
For any product-related inquiries, technical support, or warranty claims, please contact the seller directly through your purchase platform. Keep your proof of purchase for any warranty services.





