1. Product Overview
The CoCa-Cola T13 Wireless Earphones combine a unique bottle cap design with advanced audio technology, offering a distinctive style and high-quality sound experience. Featuring Bluetooth 5.4, ENC call noise reduction, and 360° stereo sound, these semi-in-ear earbuds are designed for comfort and immersive listening.

Image: CoCa-Cola T13 Earphones in their unique bottle cap charging case.
Video: Unboxing and showcasing the CoCa-Cola T13 Earphones and charging case.
2. Package Contents
Please check the package to ensure all items are present:
- 2 x CoCa-Cola T13 Earbuds (Left and Right)
- 1 x CoCa-Cola Bottle Cap Charging Case
- 1 x USB Charging Cable
- 1 x User Manual

Image: Visual representation of the items included in the product package.
3. Setup
3.1 Initial Charging
Before first use, fully charge the earphones and the charging case.
- Place the earbuds into the charging case.
- Connect the USB charging cable to the charging port on the case and to a 5V/1A power adapter (not included).
- The white indicator light on the charging case will blink during charging.
- When the earbuds are fully charged, the white indicator light on the earbuds will turn off.
- When the charging case is fully charged, the white indicator light on the case will turn off.
Important: Use a 5V/1A charger with CCC certification. Avoid fast chargers supporting high voltage to prevent product damage.

Image: Battery life and charging duration details. Single earbud music playtime is approximately 5 hours, charging time is approximately 1 hour, and total battery life with the charging case is approximately 15 hours.
3.2 Bluetooth Pairing
The earphones are designed for automatic connection after initial pairing.
- Ensure the earbuds are charged.
- Open the charging case. The earbuds will automatically enter pairing mode.
- On your device (smartphone, tablet, etc.), enable Bluetooth.
- Search for "Coke T13" in the list of available Bluetooth devices.
- Select "Coke T13" to connect. Once connected, you will hear a confirmation sound.
- After successful initial connection, the earbuds will auto-connect to your device when taken out of the case.

Image: Earbuds automatically connecting to a device after initial setup.
4. Operating Instructions
The CoCa-Cola T13 earphones feature touch controls on each earbud for various functions.

Image: Comprehensive guide to touch controls for music playback, call management, power, and voice assistant.
4.1 Music Mode Controls
- Play/Pause Song: Single-tap any earbud.
- Next Song: Triple-tap the right earbud.
- Previous Song: Triple-tap the left earbud.
- Volume Up: Long press the right earbud for 2 seconds.
- Volume Down: Long press the left earbud for 2 seconds.
4.2 Phone Mode Controls
- Answer the Phone: Single-tap any earbud.
- Reject Call: Double-tap any earbud.
- End Call: Single-tap any earbud.
4.3 Power On/Off
- Power On: Take out left/right earbud, headphones auto-power on.
- Power Off: Place earbuds into the charging case and close the lid.
4.4 Intelligent Voice Assistant
- Activate Voice Assistant: Double-tap any earbud to activate your smart voice assistant.
5. Maintenance
- Cleaning: Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth. Avoid using harsh chemicals or abrasive materials.
- Storage: When not in use, store the earphones in their charging case to protect them from dust and damage. Keep them in a cool, dry place away from extreme temperatures.
- Charging Precautions: Always use a compatible 5V/1A charger. Do not use fast chargers or chargers with higher voltage output, as this can damage the product and void the warranty.
- Water Resistance: These earphones are not specified as waterproof. Avoid exposure to water, sweat, or high humidity.
6. Troubleshooting
6.1 Earbuds Not Pairing/Connecting
- Ensure both earbuds are charged.
- Place both earbuds back into the charging case, close the lid, wait a few seconds, then open the lid again.
- Turn off Bluetooth on your device and then turn it back on.
- Forget "Coke T13" from your device's Bluetooth list and try pairing again.
- Ensure your device is within the transmission distance (approximately 10 meters) of the earphones.
6.2 No Sound or Low Volume
- Check the volume level on both your device and the earphones.
- Ensure the earphones are properly connected to your device.
- Clean any debris from the earbud speakers that might be obstructing sound.
6.3 Charging Issues
- Verify the charging cable is securely connected to both the case and the power source.
- Ensure the charging source (adapter) is 5V/1A and functioning correctly.
- Check the charging contacts on the earbuds and inside the case for any obstructions or dirt.
- Status Description (from image):
- When earbuds are charging: white indicator light is ON.
- When earbuds are fully charged: white indicator light turns off.
- When the case is charging: white indicator light blinks.
- When charging case is fully charged: white indicator light turns off.
- Low battery: voltage below 3.3V, blinking white light with voice alert "Low battery".
7. Specifications

Image: Detailed table of product specifications.
| Feature | Specification |
|---|---|
| Product Name | CoCa-Cola Wireless Bluetooth Headphones |
| Headphone Colors | CoCa-Cola Red, Zero Black, Sugar-Free White |
| Bluetooth Pairing Name | Coke T13 |
| Bluetooth Version | V5.4 |
| Transmission Distance | Approximately 10 meters (barrier-free) |
| Charging Time | Approximately 1 hour |
| Music Playtime | ~5 hours (single earbud) |
| Headphone Battery Capacity | 28mAh |
| Charging Case Battery Capacity | 300mAh |
| Rated Input | 5V-300mA |
| Speaker Specifications | 13mm |
| Headphone Dimensions | 53.78*55.17*25mm (Charging Case) |
| Packaging Dimensions | 115*65*170mm |
| Weight (whole unit) | 166.3g (with packaging) |
| Noise Cancellation | DNS Noise Cancellation (ENC) |
| Bluetooth Headset Call Protocol (HSP) | Supported |
| Feature | Specification |
|---|---|
| Frequency Range | 20Hz-20KHz |
| Speaker Impedance | 32Ω |
| Rated Power | 1.25W |
| Maximum Input Power | 10W |
Note: The above data is from Doopin Acoustic Lab test results; actual usage may have errors due to changes in objective environment.
8. User Tips
- Optimal Fit: Experiment with different earbud positions to find the most comfortable and secure fit for optimal sound quality and noise isolation.
- Regular Charging: For consistent performance, keep both the earbuds and the charging case regularly charged. A low battery can affect Bluetooth connectivity and sound quality.
- Environmental Noise Cancellation (ENC): While ENC helps reduce background noise during calls, it's most effective in moderately noisy environments. For best call clarity, try to use them in quieter settings.
- Touch Control Sensitivity: If touch controls are unresponsive, ensure your fingers are clean and dry. Sometimes a gentle, firm tap works better than a light touch.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the contact information provided by your retailer or the official CoCa-Cola product support channels. Keep your purchase receipt as proof of purchase for any warranty claims.





