1. Introduction
Thank you for choosing the DIXSG GD28 (Model JM47) Bone Conduction TWS Headphones. These lightweight, ear-clip style headphones are designed for comfort and high-fidelity sound, suitable for various activities including business, sports, and gaming. This manual provides detailed instructions for setup, operation, maintenance, and safety to ensure optimal performance and longevity of your device. Please read this manual carefully before use and retain it for future reference.
2. Package Contents
Please check the package for the following items:
- 2 x Wireless Headphones (Left and Right)
- 1 x Charging Case
- 1 x USB Type-C Charging Cable
- 1 x User Manual (This document)
3. Product Overview
Familiarize yourself with the components of your headphones:
4. Setup
4.1 Initial Charging
Before first use, fully charge your headphones and charging case. Connect the charging case to a USB power source using the provided Type-C cable. The indicator lights on the headphones will show charging status.
4.2 Wearing Instructions
The headphones feature an ear-clip design for comfortable, non-in-ear wear. The ergonomic design ensures a secure fit without causing pain, even during long periods of use or vigorous activity.
The above wearing styles are recommendations; adjust for your personal comfort.
4.3 Bluetooth Pairing
- Power On: Remove the headphones from the charging case. They will automatically power on. Alternatively, long-press the touch button on either earbud for 3 seconds until you hear a TONE sound and the white and green indicator lights flash alternately.
- Activate Bluetooth: On your mobile phone or device, go to Bluetooth settings and enable Bluetooth.
- Search for Device: Look for the device name "JM47" in the list of available devices.
- Connect: Tap on "JM47" to connect. Once connected, your device will show "Connected" and the headphone indicator lights will stop flashing or show a steady light.
5. Operating Instructions
The headphones feature a one-touch multi-function blind-press design for convenient control of music and calls. The red area on the earbud is the touch-sensitive control area.
5.1 Power On/Off
- Power On: Remove from charging case (automatic) or long-press touch button for 3 seconds.
- Power Off: Place back into charging case (automatic charging/off) or long-press touch button for 5 seconds. (Headphone tone: TONE; Indicator light: white light on for 3 flashes, then off).
5.2 Call Mode
- Answer/Hang Up Call: Short press the touch button once.
- Reject Call: Long press the touch button for 2 seconds.
- Call Back: Double click the touch button.
5.3 Music Mode
- Play/Pause: Short press the touch button once.
- Next Song: Triple click the right earbud's touch button.
- Previous Song: Triple click the left earbud's touch button.
- Volume Up: Three touches on the right earbud.
- Volume Down: Three touches on the left earbud.
5.4 Voice Assistant
- Wake up SIRI (or other voice assistant): Long press the left or right earbud for 2 seconds.
6. Specifications
| Feature | Specification |
|---|---|
| Model Name | JM47 |
| Bluetooth Version | 5.3 |
| Wireless Range | <10 meters |
| Speaker Diameter | 8mm |
| Charging Port | Type-C |
| Sensitivity | 105 ± 3dB |
| Impedance Range | Up to 32 Ω |
| Headphone Battery Capacity | 50mAh (each) |
| Charging Case Battery Capacity | 3.7V 300mAh |
| Headphone Charging Time | Approx. 0.8 hours |
| Charging Case Charging Time | Approx. 1.5-2 hours |
| Music Playback Time | Up to 4 hours (may vary based on volume/content, up to 6-8 hours reported in some conditions) |
| Standby Time | Approx. 30 hours (without connection, up to 688 hours reported in some conditions) |
| Material | PC, Plastic |
| Waterproof Rating | IPX7 |
| Features | Waterproof, With microphone, Active Noise Cancelling, Touch Control, Low Latency, Support binaural calls, Main and vice-ear independent switching, Automatic connection |
| Codecs | AAC |
| Vocalism Principle | Dynamic |
| Certification | CE |
For more detailed specifications, please refer to the official product page or the PDF user manual available at: User manual (PDF)
7. Maintenance and Care
- Storage: When not in use for an extended period (over 1 month), ensure the headphones and charging case are charged to prevent battery degradation.
- Cleaning: Do not wipe the product with oil or other volatile liquids. Use a soft, dry cloth for cleaning.
- Liquid Exposure: While the headphones are IPX7 waterproof, meaning they can withstand splashes and sweat, avoid submerging them in water or exposing them to excessive liquids. Do not wet the device with liquids beyond its rated protection.
- Temperature: Avoid exposing the device to extreme temperatures (below 0°C or above 45°C).
8. Troubleshooting
- Cannot find "JM47" in Bluetooth list:
- Ensure the headphones are powered on and in pairing mode (indicator lights flashing alternately).
- If the headphones have been idle for a long time without pairing, the pairing function might turn off. Power off and then power on the headphones again to re-enter pairing mode.
- Restart your mobile phone's Bluetooth function or the phone itself.
- If the headphone program seems to be malfunctioning, restart the headphones by powering them off and on.
- No sound or intermittent sound:
- Ensure the headphones are properly connected to your device.
- Check the volume levels on both your device and the headphones.
- Move closer to your device to avoid interference or being out of range.
- Re-pair the headphones with your device.
- Headphones not charging:
- Ensure the charging cable is securely connected to both the charging case and the power source.
- Check if the charging contacts on the headphones and inside the case are clean and free of debris.
- Try a different USB port or power adapter.
9. User Tips
- Comfortable Fit: Experiment with the ear clip placement to find the most comfortable and secure fit for your ear shape. The design is intended to be painless for extended wear.
- Awareness: As bone conduction headphones, they allow you to hear your surroundings, which is great for outdoor sports or commuting. Always be aware of your environment.
- Cleaning: Regularly wipe the touch control area and charging contacts with a dry, soft cloth to ensure optimal performance and connectivity.
- Battery Management: For best battery longevity, avoid completely draining the battery frequently. Charge the case and headphones when convenient.
10. Safety Information
Please observe the following safety precautions:
- Disassembly: Do not dismantle, repair, or modify the headphones for any reason. This may lead to fire, electronic component breakdown, or complete damage to the product, and will void any warranty.
- Temperature: Do not expose the device to temperatures below 0°C (32°F) or above 45°C (113°F).
- Eye Safety: Avoid directing the device's indicator lights directly into the eyes of children or animals.
- Thunderstorms: Do not use the device during thunderstorms. Thunderstorms can cause the device to malfunction and increase the risk of electric shock.
- Chemicals: Do not clean the product with oil or other volatile liquids.
- Liquid Contact: While IPX7 rated, avoid submerging the device in water.
11. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.
