TOZO NC2
TOZO NC2 Hybrid Active Noise Cancelling Wireless Earbuds User Manual
Model: NC2 | Brand: TOZO
Introduction
This manual provides detailed instructions for the TOZO NC2 Hybrid Active Noise Cancelling Wireless Earbuds. Please read this manual thoroughly before using the product to ensure proper operation and to maximize your listening experience. The TOZO NC2 earbuds feature advanced hybrid active noise cancellation, transparency mode, optical in-ear detection, and Bluetooth 5.3 connectivity, designed for immersive sound and clear communication.
What's in the Box
- TOZO NC2 Hybrid Active Noise Cancelling Wireless Earbuds
- Wireless Charging Case
- 6 Pairs of Eartips (XS/S/M/L/XL/XXL)
- USB A to USB C Charging Cable
- User Manual (this document)
Product Overview

Image: TOZO NC2 Hybrid Active Noise Cancelling Wireless Earbuds in their open charging case, displaying the earbuds and the case's charging indicator lights.
The TOZO NC2 earbuds are designed for comfort and high-quality audio. They come with a compact charging case that provides extended battery life. The earbuds feature a sleek, ergonomic design for a secure fit.
Setup
1. Initial Charge
Before first use, fully charge the earbuds and the charging case. Connect the provided USB A to USB C charging cable to the charging case and a power source. The indicator lights on the case will show the charging status. The case also supports wireless charging.

Image: The TOZO NC2 charging case placed on a wireless charging pad, illustrating its wireless charging capability.
2. Pairing with Your Device (One-step Pairing)
- Open the charging case. The earbuds will automatically power on and enter pairing mode.
- On your mobile phone or Bluetooth-enabled device, go to Bluetooth settings.
- Search for "TOZO NC2" in the list of available devices and select it to connect.
- Once connected, you will hear a confirmation tone, and the device will show "Connected".

Image: A hand holding the TOZO NC2 charging case with earbuds inside, next to a smartphone screen showing a successful Bluetooth connection to "TOZO-NC2".
The earbuds will automatically reconnect to the last paired device when taken out of the case, provided Bluetooth is enabled on the device.
3. Choosing the Right Eartips
For optimal sound quality and noise cancellation, select the eartips that provide the best seal and comfort. The TOZO NC2 comes with 6 different sizes (XS/S/M/L/XL/XXL). Experiment with different sizes to find your perfect fit.
Operating Instructions
Touch Controls
The TOZO NC2 earbuds feature smart touch controls on each earbud. The functions are as follows:

Image: A diagram illustrating the touch control functions for the left (L) and right (R) TOZO NC2 earbuds, including single tap, double tap, triple tap, and long press actions for music playback, calls, volume, and noise control modes.
| Action | Left Earbud (L) | Right Earbud (R) |
|---|---|---|
| Single Tap (x1) | Play/Pause, Answer Call | Play/Pause, Answer Call |
| Double Tap (x2) | Previous Song | Next Song |
| Triple Tap (x3) | Voice Assistant | |
| Hold (2 seconds) | Reject Call, Volume Down | Reject Call, Volume Up |
| Hold (for mode change) | Active Noise Cancellation mode / Transparent mode / Active Noise Cancellation off mode |
Active Noise Cancellation (ANC)
The TOZO NC2 features hybrid 3-layer active noise cancellation, reducing environmental noise by up to 35dB. This is achieved through outward-facing and inward-facing microphones that generate anti-noise to cancel external and internal sounds.

Image: A man wearing TOZO NC2 earbuds on a bus, demonstrating the effectiveness of Active Noise Cancellation in a noisy environment.

Image: A diagram showing the microphone placement on the TOZO NC2 earbuds, highlighting the feedback and feedforward active noise cancellation microphones for clear calls and noise reduction.
To cycle through ANC modes (ANC On, Transparency Mode, ANC Off), long-press the touch area on the Left earbud.
Transparency Mode
Transparency Mode allows you to hear your surroundings while still enjoying your audio. This is useful for situations where you need to be aware of your environment, such as hearing announcements or engaging in conversations without removing the earbuds.

Image: A man wearing TOZO NC2 earbuds while walking outdoors, illustrating the use of Transparency Mode to remain aware of his surroundings.
Optical Sensors Technology (In-Ear Detection)
The earbuds are equipped with optical sensors that detect when they are in your ears. Music playback will automatically pause when you remove an earbud and resume when you put it back in.

Image: A cutaway diagram of the TOZO NC2 earbud, highlighting the high-precision contact sensor responsible for auto-pause when removed and auto-play when inserted.
Battery Life and Charging
The earbuds provide over 10 hours of playtime on a single charge. With the compact charging case, the total playtime extends up to 42 hours. The charging case can be charged via the included USB-C cable or a wireless charger.

Image: A visual representation of the TOZO NC2's battery life, showing 10 hours on a single charge and 42 hours total playtime with the charging case.
Maintenance
Cleaning
- Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth.
- Remove eartips and clean any earwax or debris from the earbud nozzles using a small, soft brush or cotton swab.
- Ensure charging contacts on both earbuds and case are clean and free of dust.
Storage
When not in use, store the earbuds in their charging case to protect them and keep them charged. Store in a cool, dry place away from extreme temperatures.
Water Resistance
The TOZO NC2 earbuds are IPX6 waterproof, meaning they are protected against powerful water jets. This makes them suitable for sports and daily use where they might be exposed to sweat or raindrops. Do not submerge the earbuds in water or expose them to saltwater or other liquids.

Image: Two TOZO NC2 earbuds being splashed with water, illustrating their IPX6 waterproof rating.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Earbuds not pairing/connecting | Low battery, out of range, not in pairing mode, previous connection issue. |
|
| No sound from one earbud | Earbud not charged, connection issue, earbud not properly seated in case. |
|
| Poor sound quality | Improper eartip fit, earwax buildup, low battery. |
|
| Touch controls not responding | Earbuds not properly worn, temporary software glitch. |
|
If problems persist, please refer to the official TOZO support website or contact customer service.
Specifications
| Feature | Detail |
|---|---|
| Model Name | TOZO NC2 |
| Noise Control | Hybrid Active Noise Cancellation (up to 35dB) |
| Connectivity Technology | Wireless (Bluetooth) |
| Bluetooth Version | 5.3 |
| Bluetooth Range | 10 Meters |
| Battery Life (Earbuds) | 10+ hours (single charge) |
| Total Playtime (with case) | Up to 42 hours |
| Water Resistance | IPX6 Waterproof |
| Frequency Range | 20Hz - 20kHz |
| Impedance | 32 Ohm |
| Material | Plastic, Acrylonitrile Butadiene Styrene (ABS) |
| Color | Matte Black |
| Product Dimensions | 1.35 x 1.06 x 0.89 inches |
| Item Weight | 4.6 ounces |
Warranty and Support
For warranty information, please refer to the documentation included with your product or visit the official TOZO website. For technical support or further assistance, please contact TOZO customer service through their official channels.
Official Product Video
Video: An official TOZO video showcasing the Hybrid Active Noise Cancelling Wireless Earbuds, demonstrating their features and benefits in various scenarios. This video highlights the noise cancellation capabilities and overall user experience.
Related Documents - NC2
![]() |
TOZO NC7 Wireless Earbuds User Manual | Active Noise Cancelling Bluetooth Headphones Official user manual for TOZO NC7 Active Noise Cancelling Wireless Earbuds. Find instructions on pairing, power, reset, ANC/Transparency modes, music/call controls, optical sensor, and wireless charging for your Bluetooth 5.0 headphones. |
![]() |
TOZO NC7 Active Noise Cancellation Wireless Earbuds: Quick Start Guide Comprehensive quick start guide for TOZO NC7 wireless earbuds. Learn how to wear, pair, reset, and control Active Noise Cancellation, Transparency Mode, music playback, calls, volume, and voice assistants. |
![]() |
TOZO NC2 True Wireless Earbuds User Manual Comprehensive user manual for TOZO NC2 true wireless earbuds, covering setup, features, controls, app integration, troubleshooting, and specifications. Learn how to get the most out of your TOZO NC2 earbuds. |
![]() |
TOZO NC2 True Wireless Earbuds User Manual Comprehensive user manual for the TOZO NC2 True Wireless Earbuds, detailing features like Active Noise Cancellation (ANC), Bluetooth pairing, touch controls, voice assistant, and app integration for enhanced audio customization. |
![]() |
TOZO NC2 TWS ANC Earbuds User Manual Comprehensive user manual for the TOZO NC2 True Wireless Active Noise Cancellation (ANC) Earbuds, covering specifications, features, operation, charging, and troubleshooting. Includes detailed instructions on pairing, touch controls, ANC modes, and battery status. |
![]() |
TOZO NC2 True Wireless ANC Earbuds User Manual User manual for TOZO NC2 True Wireless Active Noise Cancellation (ANC) Earbuds. Includes specifications, setup instructions, pairing guide, touch controls, app integration, and compliance information. |





