1. Introduction
The Lenovo USI Pen 2 is a versatile digital stylus designed to enhance your interaction with compatible Chrome OS devices. It offers a fluid and intuitive creative experience, supporting the Universal Stylus Initiative (USI) Protocol for broad compatibility and precise input.

Image: The Lenovo USI Pen 2, optimized for Chrome OS, offers a fluid and intuitive creative experience. It supports the Universal Stylus Initiative (USI) Protocol.
Key Features:
- Chrome OS Compatibility: Seamless integration with Chrome OS devices.
- High Pressure Sensitivity: Features 4096 levels of pressure sensitivity for precise control.
- Magnetic Attachment: Conveniently attaches to compatible devices for secure storage and quick access.
- Durable Construction: Crafted from aluminum for a premium feel and durability.
- Replaceable AAAA Battery: Powered by a single AAAA battery (included).
2. Setup
2.1. Battery Installation
The Lenovo USI Pen 2 requires one AAAA battery for operation. A battery is included with your purchase.
- Gently twist the top cap of the pen counter-clockwise to open the battery compartment.
- Insert one AAAA battery into the compartment, ensuring the positive (+) and negative (-) terminals are correctly aligned as indicated inside the pen.
- Replace the top cap by twisting it clockwise until it is securely closed.
2.2. Initial Connection
The Lenovo USI Pen 2 utilizes the Universal Stylus Initiative (USI) protocol, which typically allows for automatic connection with compatible Chrome OS devices. No manual pairing process is usually required.
- Ensure your Chrome OS device is powered on and updated to ChromeOS 134 or later.
- Simply bring the pen close to the screen of your compatible device. The device should automatically detect the pen.
- If the pen does not respond, ensure the battery is correctly installed and charged.
3. Operating the Pen
The Lenovo USI Pen 2 provides a natural writing and drawing experience on your compatible Chrome OS device.

Image: The Lenovo USI Pen 2 offers exceptional pressure sensitivity with 4,096 levels, providing a paper-like writing experience.
3.1. Basic Usage
- Writing and Drawing: Use the pen tip directly on the screen to write, draw, or annotate in supported applications. The 4096 levels of pressure sensitivity allow for varying line thickness and opacity based on how hard you press.
- Navigation: The pen can also be used for general navigation, tapping, and selecting items on the screen, similar to using your finger.
- Magnetic Attachment: When not in use, attach the pen to the side of your compatible device for secure storage and easy access.

Image: The Lenovo USI Pen 2 features a magnetic attachment for secure and quick access, serving as a portable creative companion.

Image: A user operating the Lenovo USI Pen 2 with a compatible laptop, showcasing its practical application.
4. Maintenance
4.1. Battery Replacement
When the pen's performance degrades or it stops responding, it may be time to replace the AAAA battery. Follow the battery installation steps in Section 2.1.
4.2. Cleaning
- Pen Body: Wipe the pen body with a soft, dry, lint-free cloth. Avoid using harsh chemicals or abrasive materials.
- Pen Tip: Ensure the pen tip is free from debris. If necessary, gently wipe it with a slightly damp cloth and allow it to dry completely before use. Do not attempt to remove the pen tip unless it is designed for replacement.
4.3. Storage
Store the pen in a cool, dry place. When not in use, attach it magnetically to your compatible device or store it in a protective case to prevent damage to the tip.
5. Troubleshooting
5.1. Pen Not Responding
- Check Battery: Ensure the AAAA battery is correctly installed and has sufficient charge. Replace the battery if needed.
- Device Compatibility: Verify that your device is compatible with the USI protocol and meets the minimum ChromeOS version (134 or later).
- Restart Device: Try restarting your Chrome OS device.
- Clean Screen: Ensure the device screen is clean and free of smudges or debris that might interfere with pen detection.
5.2. Inaccurate Input or Jitter
- Clean Pen Tip: Ensure the pen tip is clean.
- Screen Protector: Some thick or poorly applied screen protectors can affect pen performance. Try removing it temporarily to see if performance improves.
- Interference: Move away from strong electromagnetic fields that might cause interference.
6. Specifications

Image: A detailed breakdown of the Lenovo USI Pen 2, showing its aluminum body, D pen shape, fine tip, and battery type.
| Model Number | GX81Q72385 |
| Brand | Lenovo |
| Material | Aluminum |
| Color | Gray |
| Dimensions (LxWxH) | 15.8 x 0.9 x 0.9 cm (6.20 x 0.37 x 0.37 inches) |
| Diameter | 9.5 mm (0.37 inches) |
| Weight | 19.3 grams (0.043 lbs) |
| Pressure Sensitivity | 4096 Levels |
| Battery Type | 1 x AAAA (included) |
| Minimum OS Version | ChromeOS 134 |
| Compatible Devices | Tablets, Notebook PCs with USI support |
| UPC | 195892109785 |

Image: Dimensions and weight of the Lenovo USI Pen 2.
7. Compatibility
The Lenovo USI Pen 2 is compatible with touch screen versions of the following Chrome OS models:

Image: A comprehensive list of compatible Lenovo Chromebook models.
| Series | Model | Model Nbr | Machine Type |
|---|---|---|---|
| IdeaPad Duet Series | IdeaPad Duet 3 Chromebook 11" | 11Q727 | 82T6 |
| IdeaPad Duet 5 Chromebook 13.3" | 13Q7C6 | 82QS | |
| IdeaPad Duet Chromebook | Duet | ZA6F | |
| Education | Lenovo 300e Gen 4 11.6" | 300e | 82W2 |
| Lenovo 500e Yoga Chromebook Gen 4 12.2" | 500e | 82W4 | |
| Lenovo 500e Yoga Chromebook Gen 4 12.2" | 500e | 82W5 | |
| IdeaPad Flex Series | IdeaPad Flex 5 Chromebook 13.3" | 14IAU7 | 82T5 |
| IdeaPad Flex 5 Chromebook (Plus) 14" | 14IRU7 | 83EK | |
| IdeaPad Flex 5 Chromebook 13.3" | 13ITL6 | 82M7 | |
| Lenovo Flex Series | Lenovo Flex 5 Chromebook 14" | 14IAU | 83AJ |
| Lenovo Flex5 Chromebook 14" | 14IAU | 83AK | |
| ThinkPad C Series | ThinkPad C13 Yoga Gen 1 Chromebook 13.3" | C13 | 20UX |
| ThinkPad C13 Yoga Gen 1 Chromebook 13.3" | C13 | 20UY |
8. Safety Information
- Keep the pen away from small children to prevent accidental ingestion of small parts, especially the battery.
- Do not expose the pen to extreme temperatures, direct sunlight, or liquids.
- Do not attempt to disassemble or modify the pen, as this may void the warranty and cause damage.
- Dispose of batteries according to local regulations. Do not dispose of batteries in fire.
9. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your original purchase or visit the official Lenovo support website. You can typically find support resources, FAQs, and contact information for your region there.
Lenovo Support Website: https://support.lenovo.com







