Introduction
Thank you for choosing the TECNO TRUE 1 TWS Earbuds. This manual provides essential information on setting up, operating, maintaining, and troubleshooting your new earbuds. Please read it carefully before use to ensure optimal performance and longevity of your device.
The TECNO TRUE 1 TWS Earbuds are designed to deliver a superior audio experience with advanced features such as 42 dB Active Noise Cancellation, deep bass from 10mm drivers, and a long-lasting battery life of up to 45 hours with the charging case. They are also IPX5 rated for sweat, water, and dust resistance, making them suitable for various activities.
What's in the Box
- TECNO TRUE 1 TWS Earbuds (Left and Right)
- Charging Case
- User Manual
- Ear Tip Pairs (various sizes)

Image: The TECNO TRUE 1 TWS Earbuds and their charging case, showcasing the sleek design.
Setup
1. Charging the Earbuds and Case
Before first use, fully charge the earbuds and the charging case. Connect the charging case to a power source using a compatible USB cable. The indicator lights on the case will show the charging status.

Image: The TECNO TRUE 1 TWS charging case connected to a charging cable, illustrating the charging process.
Place the earbuds into the charging case. They will begin charging automatically. A full charge provides up to 6 hours of playback for the earbuds, and the case extends total playtime to 45 hours.
2. Pairing with Your Device
- Ensure the earbuds are in the charging case and the case lid is open.
- On your device (smartphone, tablet, etc.), enable Bluetooth.
- Search for new Bluetooth devices. The earbuds should appear as "TECNO TRUE 1" or similar.
- Select the earbuds to pair. A voice prompt will confirm successful connection.
The earbuds support pop-up connection for compatible devices, simplifying the pairing process.

Image: The TECNO TRUE 1 TWS Earbuds resting inside their open charging case, ready for pairing.
3. Wearing the Earbuds
Gently insert the earbuds into your ear canals. Rotate them slightly to find a comfortable and secure fit. Choose the appropriate ear tip size from the included pairs for optimal sound quality and noise cancellation.
Operating Instructions
Touch Controls
The TECNO TRUE 1 TWS Earbuds feature intuitive touch controls on each earbud. The specific functions may vary slightly based on your device and app, but common controls include:
- Single Tap: Play/Pause music, Answer/End call.
- Double Tap (Left/Right): Next/Previous track (may vary).
- Triple Tap: Activate Voice Assistant.
- Long Press: Switch between Active Noise Cancellation (ANC) and Transparency Mode.
Active Noise Cancellation (ANC) and Transparency Mode
The earbuds offer 42 dB Active Noise Cancellation to minimize ambient sounds, providing a more immersive listening experience. Transparency Mode allows you to hear your surroundings without removing the earbuds, which is useful for awareness in busy environments.
To switch between ANC and Transparency Mode, perform a long press on either earbud's touch sensor.
Maintenance
Cleaning
Regular cleaning helps maintain sound quality and hygiene:
- Use a soft, dry, lint-free cloth to wipe the earbuds and charging case.
- For ear tips, remove them from the earbuds and clean with a damp cloth and mild soap if necessary. Rinse thoroughly and dry completely before reattaching.
- Gently remove any earwax or debris from the earbud mesh using a small, soft brush or cotton swab.
Storage
When not in use, always store the earbuds in their charging case to protect them from dust, damage, and to keep them charged.
Water Resistance (IPX5)
The earbuds are IPX5 rated, meaning they are resistant to sweat and splashes of water. They are not designed for submersion in water. Avoid exposing them to heavy rain or showering with them. Ensure the earbuds and charging port are dry before charging to prevent damage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Earbuds not pairing | Low battery, out of range, not in pairing mode, previously paired to another device. | Charge earbuds and case. Ensure Bluetooth is on and within range. Place earbuds in case, close and reopen lid to re-enter pairing mode. Disconnect from other devices. |
| No sound or low volume | Volume too low, earbuds not properly seated, debris in earbud mesh, connection issue. | Increase volume on device and earbuds. Adjust earbud fit. Clean earbud mesh. Re-pair earbuds. |
| Charging issues | Cable or adapter fault, dirty charging contacts, case battery empty. | Try a different cable/adapter. Clean charging contacts on earbuds and case. Charge the charging case. |
| ANC not working effectively | Improper fit, ear tips not sealed, very high-frequency noise. | Adjust earbud fit and try different ear tip sizes for a better seal. ANC is most effective on low-frequency sounds. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Tecno |
| Model Name | 10309821 |
| Color | Grey |
| Material | Plastic |
| Ear Placement | In-Ear |
| Form Factor | In-Ear |
| Noise Isolation | Active Noise Cancellation (42 dB) |
| Connectivity Technology | Wireless |
| Wireless Communication Technology | Bluetooth |
| Compatible Devices | Smartphones, Tablets, Laptops, Desktop Computers, Smart Speakers |
| Specific Product Uses | Travel, Sport |
| Water Resistance Level | IPX5 (Water Resistant) |
| Frequency Range | 20 to 20,000 Hz |
| Playback Time | Up to 6 hours (earbuds), up to 45 hours (with charging case) |
| Included Components | Charging Case, User Manual, Ear Tip Pairs |
Warranty and Support
For warranty information and customer support, please refer to the official TECNO website or contact your local retailer. Keep your proof of purchase for any warranty claims.
For further assistance, you may visit the product page on Amazon.com.be or contact TECNO customer service directly.





