1. Introduction
This manual provides detailed instructions for the safe and effective use of your Lenovo GM2 Pro AI True Wireless Earphones. Please read this manual thoroughly before using the product and keep it for future reference.
2. Safety Warnings
- Do not immerse the product in water or any other liquid, as this product is not waterproof.
- If any liquid accidentally enters the product, immediately disconnect it and remove it from use.
- To avoid electric shock, ensure your hands are dry before installing or uninstalling the product.
3. Package Contents
Ensure all items are present in the package:
- 2 x Bluetooth Earphones
- 1 x Charging Case
- 1 x Charging Cable
- 1 x User Manual
- 6 x Earphone Cups (S, M, L Size)
4. Product Overview
The Lenovo GM2 Pro AI earphones feature a sleek design with a shark fin streamline pattern and matte material for a comfortable touch. The charging case includes cool gaming lights.




5. Setup
5.1 Initial Charging
New earphones may be fully discharged or at low battery. Please charge for approximately 1 hour before first use. The charging case has a 350mAh capacity, and each earphone has a 40mAh capacity.
5.2 Power On/Off
- Power On: Open the charging case lid; the earphones will power on automatically.
- Power Off: Place the earphones back into the charging case and close the lid; the earphones will power off.
5.3 Pairing
To pair your earphones with a device:
- Ensure the earphones are powered on and in pairing mode (usually indicated by a flashing light).
- On your device (smartphone, tablet, etc.), go to Bluetooth settings.
- Search for available devices and select "Lenovo GM2 Pro AI" to connect.
5.4 App Download and Activation
To unlock full features, download the Nebulabuds APP and activate your device:

6. Operating Instructions
6.1 Touch Button Customization
Customize touch controls for music playback and call answering via the Nebulabuds APP. You can set single-click and double-click functions to control actions like next song, volume up/down, answer/ring off calls.

6.2 AI Assistant & AI Dialogue Mode
The earphones feature an AI Assistant with over 200 built-in applications for various scenarios including creation, office, study, and law. In AI Dialogue Mode, you can communicate with the AI in real-time to find inspiration, answers, and solutions.


6.3 Real-Time Translation Modes
The earphones offer multiple translation modes for seamless communication across languages.
- Face-to-Face Translation: Click the earphone to activate real-time translation for barrier-free face-to-face conversations.
- Headphone+Phone Mode: One person wears the headphones while the other uses the phone. Speech is automatically recognized and translated, ideal for meetings and daily conversations.
- Translation Machine Mode: Combines cutting-edge audio technology and intelligent features for enhanced productivity and communication in meetings and daily conversations.




6.4 Sleep Rest Sound
The earphones offer a Sleep Rest Sound feature with healing music, natural sounds (like waterfalls), and other effects to help you relax and rest. Sound effects can be adjusted to adapt to various audio needs.

6.5 APP Adjustable Sound
Customize your audio experience with the Nebulabuds APP. It offers preset sound effects (Default, Rock, Blues, Classical, Jazz, Pop, Country) and personalized sound adjustments through a custom equalizer to suit your preferences.

6.6 Anti-Loss Function
Equipped with features like sound prompts and positioning navigation, the anti-loss function helps you easily locate lost headphones.

6.7 Gaming Performance
The earphones are designed for gaming with no noticeable lag, ensuring a smooth and immersive experience.
7. Maintenance
- Clean the earphones and charging case regularly with a soft, dry cloth.
- Avoid using harsh chemicals or abrasive materials.
- Store the earphones in their charging case when not in use to protect them and extend battery life.
- Turn off the power after use to extend battery life.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Cannot Connect | Bluetooth settings issue, device error. | Restart the device or reset Bluetooth settings. |
| Intermittent Audio | Low battery, signal interference. | Check battery level or move away from sources of signal interference. |
| No Sound from Earphones | Not paired, audio output disabled. | Confirm that the earphones are properly paired and audio output is enabled on your device. |
For further assistance, please refer to the official support channels.
9. Specifications
| Feature | Detail |
|---|---|
| Model | Lenovo GM2 Pro AI |
| Bluetooth Version | 5.3 |
| Speaker Unit | 10 mm |
| Earphone Battery Capacity | 40mAh |
| Charging Case Battery Capacity | 350mAh |
| Earphone Usage Time | About 4-5 Hours |
| Earphone Charging Time | About 1 Hour |
| Frequency Range | 20 - 20000 Hz |
| Transmission Distance | Up to 10-20 meters / 33-66 feet |
| Material | Metal, Plastic |
| Features | With microphone, Active Noise-Cancellation, Volume Control, Control Button, Sound Isolating, AI Real-time Translation, Anti-loss, Sound Effects & Tap Control Customization, Sleep Healing Sound, Instant Translation, Record Of Translation, AI Consultant |
| Category | Earphones & Headphones |
| Connectors | Type-C |
| Certification | CE |
10. User Tips
- For optimal sound quality and translation accuracy, ensure the earphones are fully charged and your connected device is within the transmission distance.
- Experiment with the APP Adjustable Sound settings to find your preferred audio profile for different types of content (music, gaming, calls).
- Utilize the customizable touch buttons to streamline your interactions, making it easier to manage calls and media playback without reaching for your phone.
- If experiencing any issues with AI features or translation, ensure the Nebulabuds APP is updated to the latest version and your internet connection is stable.
11. Warranty and Support
For detailed warranty information and customer support, please refer to the official Lenovo website or the documentation provided with your purchase. You can also find additional item guides and documents in PDF format, such as the user manual, by visiting the product page or contacting customer service.
A PDF version of the user manual is available for download: User manual (PDF)





