1. Introduction
The KEBIDUMEI C65 is a high-performance motorcycle intercom helmet headset designed to deliver an ultimate cycling communication and entertainment experience. Featuring Bluetooth 5.4, a 500-meter intercom range, and a 1000mAh battery for extended usage, this headset ensures high-definition sound quality and fast connection speeds. It supports group intercom for up to 8 users, intelligent noise cancellation, and a voice assistant, making your rides safer and more enjoyable.

Image: KEBIDUMEI C65 Helmet Headset highlighting key features.
2. Package Contents
Please check the box for the following items:
- KEBIDUMEI C65 Headset Unit
- Microphone Set (Soft Mic for full-face/rally helmets OR Hard Mic for half-face/open-face/retro helmets, depending on your purchase)
- Charging Cable
- Velcro Fasteners
- Mounting Clips
- User Manual

Image: Diagram illustrating the components included in the package.
3. Specifications
| Feature | Specification |
|---|---|
| Item Type | Helmet Headset |
| Bluetooth Version | 5.4 + EDR |
| Connection Mode | Bluetooth |
| Frequency Range | 2.402GHz – 2.480GHz |
| Bluetooth Transmission Range | Up to 10 meters (device dependent) |
| Microphone Transmission Range | 1 meter |
| Intercom Range | Up to 500 meters |
| Maximum Number of Speakers (Intercom) | 8 |
| Power Supply Mode | Built-in Lithium Battery |
| Battery Capacity | 3.7V/1000mAh |
| Continuous Usage Time | Up to 30 hours |
| Charging Voltage | 5V |
| Charging Time | 5–7 hours |
| Standby Time | Up to 280 hours |
| Bluetooth Name | JYD-C65 |
| Certification | CE |
4. Setup and Installation
The KEBIDUMEI C65 headset is designed for easy installation on various helmet types.
4.1 Choosing the Right Microphone
- Soft Microphone: Ideal for full-face helmets and rally helmets.
- Hard Microphone: Recommended for half-face helmets, open-face helmets, and retro helmets.
4.2 Mounting the Headset Unit
- Select Mounting Method: Choose between the mounting clips or Velcro fasteners based on your helmet type and preference.
- Attach Mounting Clips: If using clips, slide them onto the edge of your helmet shell. Ensure a secure fit.
- Attach Velcro: If using Velcro, clean the helmet surface thoroughly. Apply one side of the Velcro to the helmet and the other to the headset unit. Press firmly to secure.
- Secure Headset: Slide the C65 headset unit onto the mounted clips or press it firmly onto the Velcro.
4.3 Installing Speakers and Microphone
- Speaker Placement: Position the speakers inside the helmet's ear pockets. Ensure they are aligned with your ears for optimal sound quality and comfort.
- Microphone Placement: Attach the microphone to the inside of the helmet, near your mouth. For soft mics, ensure it's positioned to pick up your voice clearly. For hard mics, ensure it's securely mounted.
- Cable Management: Route all cables neatly under the helmet padding to avoid obstruction and ensure comfort.

Image: The KEBIDUMEI C65 is compatible with various helmet types.
5. Operating Instructions
Familiarize yourself with the headset's buttons and indicators for seamless operation.

Image: Function Button Instructions for the KEBIDUMEI C65 headset.
5.1 Power On/Off
- Power On: Press and hold the Power On/Off button until the red and blue lights flash alternately.
- Power Off: Press and hold the Power On/Off button until the lights turn off.
5.2 Bluetooth Pairing
- Ensure the headset is powered off.
- Press and hold the Power On/Off button until the red and blue lights flash alternately, indicating pairing mode.
- On your mobile device, enable Bluetooth and search for available devices.
- Select "JYD-C65" from the list.
- Once connected, the blue light will flash slowly.
5.3 Music Playback
- Volume Up: Press the volume up button once.
- Volume Down: Press the volume down button once.
- Next Track: Long press the volume up button.
- Previous Track: Long press the volume down button.
5.4 Call Management
- Automatic Answering: Incoming calls are automatically answered after a few rings.
- Switch Answering Mode: Double press the volume up button to switch between automatic and manual answering.
- Answer/End Call (Manual): Press the Power On/Off button once to answer or end a call.
5.5 Intercom Function
The C65 supports two-way group intercom for 2 to 8 people within a 500-meter range.
- Activate Two-Way Intercom: Long press the dedicated intercom button (refer to the Function Button Instructions diagram).
- Group Communication: The headset establishes a stable communication network, allowing real-time group chatting.

Image: Illustrating the 500-meter group intercom capability.
5.6 Voice Assistant
- Activate Voice Assistant: Double press the volume down button to activate your phone's voice assistant (e.g., Siri, Google Assistant).
- Functions: Use voice commands for navigation, making calls, playing music, and checking weather conditions.

Image: Voice assistant features for hands-free control.
5.7 Charging
- Connect the charging cable to the USB charging port on the headset and to a 5V power source.
- A red light will be on during charging.
- Charging typically takes 5-7 hours for a full charge.
6. Maintenance
To ensure the longevity and optimal performance of your KEBIDUMEI C65 headset, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the headset unit. Avoid using harsh chemicals or abrasive materials.
- Storage: Store the headset in a cool, dry place away from direct sunlight and extreme temperatures.
- Water Exposure: While designed for outdoor use, avoid submerging the unit in water. If it gets wet, dry it thoroughly before use or charging.
- Battery Care: For long-term storage, charge the battery to about 50% every few months to prevent deep discharge.
7. Troubleshooting
If you encounter issues with your KEBIDUMEI C65 headset, refer to the following common solutions:
- Headset not powering on: Ensure the battery is charged. Connect to a charger and try again.
- Cannot pair with phone: Make sure the headset is in pairing mode (red and blue lights flashing alternately). Ensure Bluetooth is enabled on your phone and it's within 10 meters of the headset. Try restarting both devices.
- No sound from speakers: Check the volume level on both the headset and your connected device. Ensure the speaker cables are securely connected.
- Intercom not working: Verify that all participating headsets are within the 500-meter range and properly paired for intercom. Ensure the intercom function is activated.
- Poor sound quality/excessive noise: Ensure the microphone is positioned correctly and not obstructed. Check that the speakers are aligned with your ears. The intelligent noise cancellation works best with a proper fit.
- Short battery life: Ensure the headset is fully charged (5-7 hours). Battery performance can degrade over time with usage.
8. User Tips
- Optimal Noise Cancellation: For the best noise reduction experience, ensure your helmet is well-fitted and the speakers are positioned directly over your ears.
- Seamless Device Switching: Leverage the dual-device intelligent switching feature to effortlessly transition between communication and entertainment without manual intervention.
- Pre-Ride Charging: Always fully charge your headset before long rides to take advantage of the impressive 30-hour continuous usage time.
- Voice Assistant Efficiency: Utilize the voice assistant for hands-free control of navigation, calls, and music, enhancing safety and convenience while riding.
- Intercom Range Awareness: While the intercom boasts a 500m range, environmental factors can affect it. Try to maintain line of sight or closer distances for the most reliable group communication.
9. Warranty and Support
For warranty information, technical support, or any product-related inquiries, please contact the seller or manufacturer directly through your purchase platform. Keep your proof of purchase for any warranty claims.





