TOZO T13187
TOZO O2 True Open Ear Wireless Headphones User Manual
Model: T13187 | Brand: TOZO
Introduction
The TOZO O2 True Open Ear Wireless Headphones are designed for comfort, safety, and high-quality audio. Featuring a unique dual-axis design for multi-angle adjustment, these earbuds provide a secure and comfortable fit for extended listening sessions. With Bluetooth 5.3 connectivity and IPX6 water resistance, they are ideal for various scenarios, from driving to exercising. Enjoy crystal-clear calls and personalized sound with the TOZO APP.

Image: The TOZO O2 True Open Ear Wireless Headphones in pink, showcasing their sleek design.
What's in the Box
- TOZO Openbuds Wireless Earbuds
- Wireless Charging Case
- USB-C® (A to C) cable (20")
- User Manual
Setup
1. Charging the Earbuds and Case
Before first use, fully charge the earbuds and the charging case. Connect the provided USB-C cable to the charging port on the case and a power source. The indicator lights on the case will show the charging status. A full charge provides up to 42 hours of total playtime with the charging case.

Image: The TOZO Openbuds charging case with earbuds, showing the charging indicator light.
2. Pairing with Your Device
The earbuds automatically enter pairing mode when removed from the charging case. Open the Bluetooth settings on your device and select "TOZO O2" from the list of available devices. Once connected, a voice prompt will confirm successful pairing.
Video: Demonstrates the pairing process of the TOZO O2 earbuds with a mobile device, highlighting the automatic connection feature.

Image: A smartphone screen displaying the Bluetooth connection status, confirming the TOZO Openbuds are connected.
3. TOZO APP Installation
Download the TOZO APP from your device's app store to unlock additional features, including 5 preset EQ settings for a personalized listening experience and firmware updates.

Image: Screenshots of the TOZO APP interface, illustrating the various EQ settings and options for firmware updates.
Operating Instructions
1. Wearing and Fit Adjustment
The TOZO O2 features a Dual-Axis Design allowing for both horizontal and vertical adjustment. Gently place the earbuds over your ears and rotate the ear cups to find your preferred position for a comfortable and secure fit. This design ensures stability during various activities.

Image: A diagram illustrating the dual-axis rotation feature of the TOZO O2 earbuds, demonstrating their multi-angle adjustment capabilities.
Video: Shows the multi-angle adjustment of the TOZO OpenBuds, emphasizing their lightweight and true open-ear design for comfortable wear.
The Open Ear Design allows you to enjoy audio while remaining aware of your surroundings, enhancing safety during outdoor activities or driving.

Image: A woman wearing the TOZO Openbuds, illustrating how the open-ear design allows for ambient sound awareness.
2. Touch Controls
The earbuds feature intuitive touch controls for managing your audio and calls:
- Play/Pause: Single tap on either earbud.
- Next Track: Double tap on the right earbud.
- Previous Track: Double tap on the left earbud.
- Volume Up: Press and hold the right earbud.
- Volume Down: Press and hold the left earbud.
- Answer/End Call: Single tap on either earbud.
- Reject Call: Press and hold either earbud.
- Activate Voice Assistant: Triple tap on either earbud.
3. Dual Connectivity
The TOZO O2 supports dual connectivity, allowing you to connect to two devices simultaneously. This enables seamless switching between, for example, your smartphone and tablet without needing to re-pair.
Maintenance
1. Cleaning
Regularly clean your earbuds and charging case with a soft, dry cloth. Avoid using abrasive materials or harsh chemicals.
2. Water Resistance (IPX6)
The earbuds are IPX6 water-resistant, meaning they can withstand high-pressure water jets. This makes them suitable for workouts and outdoor use. However, they are not designed for submersion in water.

Image: The TOZO Openbuds with water droplets on their surface, demonstrating their IPX6 water resistance for sports and outdoor activities.
Troubleshooting
| Problem | Solution |
|---|---|
| Earbuds not pairing | Ensure earbuds are charged. Turn off and on Bluetooth on your device. Forget "TOZO O2" from your device's Bluetooth list and re-pair. |
| Only one earbud working | Place both earbuds back into the charging case, close the lid, wait a few seconds, then take them out again. Ensure both are charged. |
| Low volume or poor sound quality | Adjust the fit of the earbuds. Clean any debris from the speaker grilles. Check volume levels on both your device and the earbuds. Try different EQ settings in the TOZO APP. |
| Earbuds not charging | Ensure the charging cable is securely connected. Check the charging case battery level. Try a different USB-C cable or power adapter. |
Specifications
- Model Name: TOZO Openbuds
- Connectivity Technology: Wireless (Bluetooth 5.3)
- Ear Placement: Open Ear
- Audio Driver Type: Dynamic Driver (14.2 mm)
- Frequency Response: 20Hz - 20kHz
- Sensitivity: 100 dB
- Impedance: 16 Ohm
- Battery Life (Earbuds + Case): Up to 42 Hours
- Charging Time: 1.5 Hours (Earbuds), 2 Hours (Case)
- Water Resistance Level: IPX6
- Control Type: Touch Control / APP
- Item Weight: 0.02 Grams (Earbuds)
- Product Dimensions: 4.17 x 3.35 x 1.57 inches
- Material: Polycarbonate (PC), Plastic, Metal
Warranty and Support
TOZO provides an 18-month warranty for the Openbuds. To activate your warranty and for further support, please refer to the instructions in your User Manual or visit the official TOZO website. Each item also has a unique code that TOZO verifies before shipping, ensuring product authenticity.
For additional assistance, you can visit the TOZO Store on Amazon.
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