Introduction
Thank you for choosing the CD11 Wireless Bluetooth Headset. This manual provides essential information for setting up, operating, and maintaining your new earbuds. Designed with a unique mecha style, these TWS (True Wireless Stereo) earbuds offer a free wireless experience with Bluetooth 5.4, high-resolution stereo sound, dual-microphone ENC call noise reduction, and a low-latency gaming mode.
Package Contents
Please check the box for the following items:
- CD11 TWS Earbuds
- Mecha-Style Charging Case/Stand
- USB Type-C Charging Cable
- User Manual (this document)
Setup
1. Initial Charging
Before first use, ensure the earbuds and charging case are fully charged. Connect the provided USB Type-C cable to the charging case and a suitable power source (e.g., a computer USB port or a 5V USB wall adapter). The charging case features a Type-C interface for convenient charging.
Charging time for the earbuds is approximately 60 minutes. The charging case also takes about 60 minutes to fully charge, providing up to 3 full charges for the earbuds.
2. Pairing with Your Device
The CD11 earbuds support quick pairing for a seamless connection.
- Open the lid of the charging case. The earbuds will automatically power on and enter pairing mode.
- On your smartphone or Bluetooth-enabled device, go to Bluetooth settings.
- Search for available devices and select "CD11" from the list.
- Once connected, you will hear a tone indicating successful pairing.
Operating Instructions
Smart Touch Controls
The CD11 earbuds feature intuitive smart touch controls on each earbud. Refer to the diagram below for specific functions:
- Power On/Off: Long press the touch button for 3 seconds.
- Answer/Hang Up Call: Single tap the touch button.
- Play/Pause Music: Single tap the touch button.
- Voice Assistant (Siri): Long press the touch button for 3 seconds during standby.
- Previous Song: Double tap the left earbud.
- Next Song: Double tap the right earbud.
- Volume Up: Triple tap the right earbud.
- Volume Down: Triple tap the left earbud.
- Low Latency Mode (Gaming Mode): Quadruple tap (four clicks) on either the left or right earbud to switch between low latency and normal mode.
Language Switching
To switch between Chinese and English voice prompts, triple tap the touch button on either earbud *before* connecting the device to your phone.
Maintenance
Cleaning
Regularly clean your earbuds and charging case to ensure optimal performance and hygiene. Use a soft, dry, lint-free cloth. Do not use abrasive cleaners or solvents. Avoid getting moisture in any openings.
Storage
When not in use, store the earbuds in their charging case to protect them from dust and damage. Store in a cool, dry place away from extreme temperatures.
Troubleshooting
- Earbuds not pairing: Ensure both earbuds are charged. Place them back in the case, close the lid, then open it again to re-enter pairing mode. Check your device's Bluetooth settings and try reconnecting.
- Only one earbud working: Try resetting the earbuds by placing them in the charging case, closing the lid, and then opening it again. Re-pair with your device.
- Poor sound quality: Ensure the earbuds are properly seated in your ears. Check the audio source and volume levels on both your device and the earbuds.
- Charging issues: Verify the USB Type-C cable is securely connected to both the charging case and the power source. Ensure the charging contacts on the earbuds and inside the case are clean and free of debris.
- Low latency mode not activating: Ensure you are performing four quick taps on the earbud. If issues persist, try re-pairing the earbuds.
Specifications
| Feature | Specification |
|---|---|
| Model | CD11 |
| Bluetooth Version | 5.4 + BR + EDR |
| Bluetooth Protocol | a2dp/avctp/avdtp/avrcp/hfp/spp/smp/att/gap/gatt/rfcomm/sdp/l2cap profile |
| Bluetooth Frequency Range | 2.4 - 2.480GHz |
| Bluetooth Transmission Distance | 10 meters |
| Earbud Battery Capacity | 30mAh (each earbud) |
| Charging Case Battery Capacity | 230mAh |
| Headphone Playback Time | Up to 4.5 hours (270 minutes) |
| Headphone Talk Time | Up to 4 hours (240 minutes) |
| Standby Time | Up to 420 minutes |
| Headphone Charging Time | Approx. 60 minutes |
| Charging Case Charging Time | Approx. 60 minutes (provides 3 charges for earbuds) |
| Charging Voltage of Electric Box | 5V |
| Material | ABS |
| Features | Waterproof, With Microphone, Active Noise Cancelling (ENC) |
| Number of Drivers | 2 |
| Vocalism Principle | Dynamic |
| Voice Assistant Built-in | No |
| NFC Technology | No |
| Support Memory Card | No |
| Earbud Dimensions (approx.) | 18mm (Width) x 19mm (Height) |
| Charging Case Dimensions (approx.) | 74.5mm (Length) x 46.5mm (Width) x 30mm (Height) |
| Package Weight (approx.) | 272g |
User Tips
- Optimal Fit: Experiment with different ear tip sizes (if provided, though not explicitly listed) to find the best fit for comfort and sound isolation, which enhances both audio quality and Active Noise Cancelling performance.
- Gaming Mode: Remember to activate the low-latency gaming mode (quadruple tap) when playing games for a more synchronized audio experience.
- Regular Charging: For consistent performance, make it a habit to place the earbuds back into their charging case when not in use. This ensures they are always ready for your next session.
Warranty and Support
For any product-related inquiries, technical support, or warranty claims, please contact the seller or retailer from whom you purchased the CD11 Wireless Bluetooth Headset. Keep your purchase receipt as proof of purchase.