1. Introduction
Thank you for choosing TOZO T12 Wireless Earbuds. This manual provides detailed instructions on how to set up, operate, maintain, and troubleshoot your earbuds to ensure optimal performance and user experience. Please read this manual thoroughly before using your device.
2. What's in the Box
- TOZO T12 Wireless Earbuds
- Charging Case
- Ear Tips (multiple sizes)
- USB-C Charging Cable (not explicitly listed but standard)
- User Manual (this document)
3. Product Overview
The TOZO T12 earbuds feature an ergonomic design for comfortable wear and are equipped with advanced audio technology for superior sound quality. The charging case includes an LED digital display to monitor battery levels.

Image 3.1: TOZO T12 Earbuds inside their charging case, showcasing the integrated LED digital display that indicates the battery percentage for both the case and individual earbuds. The earbuds are red, and the case is open, revealing the charging contacts.
4. Setup
4.1. Charging the Earbuds and Case
Before first use, fully charge the earbuds and the charging case.
- Via USB-C Cable: Connect the provided USB-C cable to the charging port on the case and plug the other end into a USB power adapter (not included).
- Wireless Charging: Place the charging case on a compatible wireless charging pad (not included).
The LED digital display on the charging case will show the current battery level of the case and the charging status of each earbud. A full charge provides up to 55 hours of total playtime with the charging case, and approximately 15 hours on a single earbud charge.

Image 4.1: The TOZO T12 charging case being charged in two ways: wirelessly on a charging pad and via a USB-C cable. This illustrates the dual charging capabilities of the device.
4.2. Pairing with Your Device
The TOZO T12 earbuds utilize Bluetooth 5.3 for a stable and efficient connection.
- Take both earbuds out of the charging case. They will automatically enter pairing mode.
- On your device (smartphone, tablet, laptop), go to Bluetooth settings.
- Search for available devices and select "TOZO T12" from the list.
- Once connected, you will hear a confirmation tone, and the earbuds will be ready for use.
The earbuds support one-step pairing and auto-reconnection. After the initial pairing, they will automatically reconnect to the last paired device when taken out of the case.

Image 4.2: A smartphone screen displaying the Bluetooth settings, showing "TOZO Tonal Dots" as a connected device. Next to it, the TOZO T12 earbuds are shown in their open charging case, indicating successful pairing.
4.3. Choosing the Right Ear Tips
For optimal sound quality and comfort, select the ear tips that best fit your ear canals. The TOZO T12 comes with 5 pairs of ear tips of different sizes. Experiment with different sizes to find the most secure and comfortable fit.
5. Operating the Earbuds
5.1. Touch Controls
The TOZO T12 earbuds feature intuitive touch controls on each earbud. Specific functions typically include:
- 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.
- Reject Call: Press and hold either earbud for 2 seconds.
- Activate Voice Assistant: Triple tap on either earbud.
5.2. TOZO APP Customization
Enhance your audio experience by downloading the official TOZO APP. The app allows you to:
- Choose from 16 preset equalizer (EQ) modes.
- Customize your own EQ settings to match your preferences.
- Access additional features and firmware updates.

Image 5.1: Multiple smartphone screens displaying the TOZO APP interface, highlighting the equalizer settings, sound effect options, and community features for personalized audio control.
5.3. Call Functionality
The TOZO T12 earbuds are equipped with Environmental Noise Cancellation (ENC) technology, which effectively reduces ambient noise during calls. This ensures clearer conversations by minimizing background sounds like wind and traffic.

Image 5.2: A woman smiling while wearing a red TOZO T12 earbud, illustrating the use of the earbuds for clear calls with ENC noise reduction technology.
6. Maintenance
6.1. Cleaning
To maintain optimal performance and hygiene:
- Regularly clean the ear tips with a soft, dry cloth.
- Gently wipe the charging contacts on both the earbuds and the case with a cotton swab to ensure proper charging.
- Avoid using abrasive materials or harsh chemicals.
6.2. Water Resistance (IPX8)
The TOZO T12 earbuds feature an advanced IPX8 waterproof rating. This means they are protected against immersion in water up to 1 meter for 30 minutes. They are suitable for use during workouts, in the rain, and even for swimming. However, ensure the earbuds are dry before placing them back into the charging case to prevent damage.

Image 6.1: A pair of red TOZO T12 earbuds partially submerged in water, with water splashing around them, demonstrating their IPX8 water resistance capabilities.
7. Troubleshooting
If you encounter any issues with your TOZO T12 earbuds, please refer to the following common solutions:
| Problem | Possible Solution |
|---|---|
| Earbuds not pairing |
|
| Only one earbud working |
|
| No sound or low volume |
|
| Charging issues |
|
8. Specifications
| Feature | Detail |
|---|---|
| Brand | TOZO |
| Model Name | T12 |
| Connectivity Technology | Wireless (Bluetooth) |
| Bluetooth Version | 5.3 |
| Bluetooth Range | 10 Meters |
| Ear Placement | In-Ear |
| Form Factor | In-Ear |
| Noise Control | Sound Isolation, ENC Noise Reduction (for calls) |
| Water Resistance Level | IPX8 (Waterproof) |
| Average Case Battery Life | 55 Hours |
| Single Earbud Playtime | Approx. 15 Hours |
| Control Type | Touch Control |
| Audio Driver Size | 10 Millimeters |
| Frequency Range | 20 Hz - 20,000 Hz |
| Impedance | 32 Ohms |
| Hardware Interface | USB Type C |
| Case Material | Plastic |
| Case Dimensions (L x W x H) | 7.2 x 3.4 x 3.1 Centimeters |
| Case Weight | 37 Grams |
| Compatible Devices | Mobile Phones, Car Audio Systems, Laptops, Gaming Consoles, Tablets |
9. Warranty and Support
TOZO products are designed for quality and reliability. For warranty information, please refer to the documentation included with your purchase or visit the official TOZO website. For customer support, technical assistance, or to explore other TOZO products, please visit the TOZO Store on Amazon or contact TOZO customer service directly.







