1. Introduction
Thank you for choosing the Coby Noise-Canceling Earbuds. This manual provides essential information for setting up, operating, and maintaining your earbuds. Please read it thoroughly to ensure optimal performance and longevity of your device.
2. Package Contents
Verify that all items are present in your package:
- Coby Noise-Canceling Earbuds (Left and Right)
- Wireless Charging Case
- USB-C Charging Cable
- Multiple Sizes of Ear Cushions
- User Manual (this document)
3. Product Overview
The Coby Noise-Canceling Earbuds are designed for wireless audio with active noise cancellation and transparency modes. They feature touch controls and integrate with the Coby Smart App for enhanced functionality.

Image: The Coby Noise-Canceling Earbuds (left and right) shown alongside their compact wireless charging case. The case features the Coby logo and LED indicators.
4. Setup
4.1. Charging the Earbuds and Case
Before first use, fully charge the earbuds and charging case.
- Place the earbuds into the charging case. Ensure they are correctly seated in their respective slots (L for left, R for right).
- Connect the USB-C charging cable to the charging port on the case and the other end to a USB power source (e.g., wall adapter, computer USB port).
- The LED indicators on the charging case will illuminate to show charging status. Once fully charged, the indicators may change color or turn off, depending on the model.
A full charge provides approximately 8 hours of playtime for the earbuds, with additional charges available from the case.

Image: Coby earbuds resting in their open charging case, illustrating the charging process and indicating extended playtime.
4.2. Bluetooth Pairing
Pair your earbuds with your device for the first time:
- Open the charging case. The earbuds will automatically enter pairing mode, indicated by a flashing LED on the earbuds.
- On your smartphone or Bluetooth-enabled device, navigate to the Bluetooth settings.
- Select "Coby Earbuds" (or similar name) from the list of available devices.
- Once connected, a voice prompt will confirm successful pairing, and the earbud LEDs will stop flashing.
After initial pairing, the earbuds will automatically connect to the last paired device when removed from the case and within range.

Image: An illustration demonstrating the quick and easy Bluetooth pairing technology, compatible with Android, Apple, and Windows devices, with a smartphone displaying a music app.
5. Operating Instructions
5.1. Power On/Off
- Power On: The earbuds automatically power on when removed from the charging case.
- Power Off: The earbuds automatically power off and begin charging when placed back into the charging case and the lid is closed.
5.2. Touch Controls
The earbuds feature touch-sensitive areas for control. Specific functions may vary or be customizable via the Coby Smart App.
- Play/Pause: Single tap on either earbud.
- Next Track: Double tap on the right earbud.
- Previous Track: Double tap on the left earbud.
- Answer/End Call: Single tap on either earbud during an incoming call.
- Reject Call: Press and hold on either earbud during an incoming call.
- Activate Voice Assistant: Triple tap on either earbud (if supported by your device).
5.3. Noise Control Modes
The earbuds offer three distinct noise control modes:
- Active Noise Cancellation (ANC): Reduces ambient noise for an immersive listening experience.
- Transparency Mode: Allows you to hear your surroundings while still enjoying your audio, enhancing situational awareness.
- Normal Mode: Standard audio playback without active noise cancellation or transparency features.
Cycle through these modes by pressing and holding the touch control area on either earbud (default setting, customizable via app).
5.4. Coby Smart App
Enhance your earbud experience by downloading the free Coby Smart App. The app provides additional features and customization options:
- Earbud Tracker: Locate your earbuds using GPS functionality.
- EQ Customizer: Adjust audio equalization settings to your preference or choose from preset profiles.
- Cycle Modes: Easily switch between Noise Canceling, Transparency, and Normal modes.
- Custom Touch Controls: Personalize the touch control functions.

Image: Screenshots of the Coby Smart App interface, highlighting features such as earbud tracking on a map, active noise cancellation mode selection, and a graphic equalizer for audio customization.
6. Maintenance
6.1. Cleaning
Regular cleaning helps maintain sound quality and hygiene.
- Gently wipe the earbuds and charging case with a soft, dry, lint-free cloth.
- Remove ear cushions and clean them with mild soap and water if necessary. Ensure they are completely dry before reattaching.
- Use a dry cotton swab to carefully clean the charging contacts on both the earbuds and inside the case.
- Avoid using abrasive materials, alcohol, or chemical cleaners.
6.2. Storage
When not in use, store the earbuds in their charging case to protect them and keep them charged. Store the case in a cool, dry place away from direct sunlight and extreme temperatures.
7. Troubleshooting
If you encounter issues, refer to the following common solutions:
- Earbuds not pairing: Ensure earbuds are charged, Bluetooth is enabled on your device, and the earbuds are in pairing mode. Try forgetting the device in your phone's Bluetooth settings and re-pairing.
- Only one earbud working: Place both earbuds back in the case, close the lid for a few seconds, then remove them. Ensure both are charged.
- No sound: Check volume levels on both your device and the earbuds. Ensure earbuds are properly connected to your device.
- Charging issues: Verify the charging cable and power source are working. Ensure charging contacts on earbuds and case are clean and free of debris.
- Touch controls unresponsive: Ensure your fingers are clean and dry. Try restarting the earbuds by placing them in the case and taking them out again.
For persistent issues, consult the Coby support website or contact customer service.
8. Specifications
| Feature | Specification |
|---|---|
| Model Number | CETW634WH |
| Connectivity | Wireless (Bluetooth 5.0) |
| Bluetooth Range | Up to 10 meters (33 feet) |
| Noise Control | Active Noise Cancellation, Transparency Mode |
| Battery Life (Earbuds) | Up to 8 hours |
| Charging Port | USB-C |
| Control Type | Touch Control |
| Ear Placement | In Ear |
| Item Weight | 1.3 Ounces (earbuds and case) |
| Dimensions | 1.08 x 2.47 x 2 inches |
| UPC | 810071492303 |
9. Warranty and Support
Coby products are designed for reliability and performance. For information regarding warranty coverage, technical support, or service inquiries, please visit the official Coby website or contact their customer service department. Keep your purchase receipt as proof of purchase for warranty claims.
Manufacturer: Summit Electronics, LLC
