1. Introduction
Thank you for choosing the Lenovo X3 Pro Bone Conduction Headphone. This innovative headset utilizes patented bone conduction technology to deliver sound without blocking your ear canals, providing a unique and safe listening experience. Designed for sports and daily use, it features a lightweight, ergonomic ear-hook design, Bluetooth 5.3 for stable connectivity, and IP56 waterproofing.
This manual provides detailed instructions for the safe and efficient use of your headphone. Please read it thoroughly before use and keep it for future reference.
2. Package Contents
Ensure all the following items are included in your package:
- 1 x Lenovo X3 Pro Bone Conduction Earphone
- 1 x Charging Cable
- 1 x User Manual
- 1 x Certificate of Quality
3. Product Overview
3.1 Headphone Components
Refer to the diagram below for an overview of the headphone's parts and their functions.

4. Specifications
| Feature | Specification |
|---|---|
| Brand | Lenovo |
| Model | X3 Pro |
| Product Type | Bone Conduction Wireless Earphones |
| Bluetooth Version | 5.3 |
| Bluetooth Distance | ≥10m (Without obstacles) |
| Battery Capacity | 135mAh |
| Rated Input | 5V=100mA |
| Charging Time | About 2 hours |
| Play Time | About 7 hours |
| Vibration Speaker Size | 16mm |
| Horn Specification | 0.5W, 8Ω, 86+/-3dB |
| Frequency Response Range | 20Hz-20KHz (ISM band 2.402-2.480GHZ) |
| Microphone Sensitivity | -42dB±3dB |
| Waterproof Level | IP56 |
| Material | Plastic |
| Charging Interface | USB Micro |
| Weight | 25g (headphone only) / 230g (packaging) |
| Colors Available | Black, White |
5. Getting Started
5.1 Charging the Headphone
Before first use, fully charge your headphone. When the battery is low, your phone will display a low battery alarm. Use the provided charging cable with a standard 5V charger.
- Connect the Micro USB end of the charging cable to the headphone's USB charging port (8).
- Connect the USB-A end to a 5V USB power adapter or computer USB port.
- The red indicator light will be solid during charging.
- Charging is complete when the blue indicator light is solid.
- Charging time is approximately 2 hours.
5.2 Power On/Off
- **To Power On:** Press and hold the On/Off key (1) for 3 seconds. The red and blue indicator lights will flash.
- **To Power Off:** Press and hold the On/Off key (1) for 3 seconds. The indicator lights will turn off.
5.3 Bluetooth Pairing
After powering on, the headphone will automatically enter pairing mode if not already connected to a device.
- Ensure the headphone is powered on and in pairing mode (red and blue lights flashing alternately).
- On your mobile device, go to Bluetooth settings and enable Bluetooth.
- Search for available devices. The headphone will appear as "Lenovo thinkplus-X3 pro".
- Select "Lenovo thinkplus-X3 pro" to connect.
- Once successfully connected, the blue indicator light will flash slowly, then turn off during normal playback.
6. Operating Instructions
The headphone features intuitive controls for various functions:
| Function | Action |
|---|---|
| Power On/Off | Long press On/Off key (1) for 3 seconds |
| Game Mode | Triple click On/Off key (1) |
| Next Song | Double click Plus key (2) |
| Previous Song | Double click Minus key (3) |
| Increase Volume | Single click Plus key (2) |
| Decrease Volume | Single click Minus key (3) |
| Activate Voice Assistant (SIRI) | Long press On/Off key (1) for 1 second |
| Answer/Hang Up Call | Single click On/Off key (1) |
6.1 Indicator Light Status
- **Red and Blue Alternating:** Pairing Status
- **Blue Slow Flash:** Connection Succeeded, waiting for playback
- **Blue Light Breathing:** Enter low latency game mode
- **Red Light Solid:** Being charged
- **Blue Light Solid:** Battery full
7. Maintenance and Care
- **USB Port Protection:** Always ensure the USB silicone plug is securely inserted during use to prevent rain or sweat from entering the port.
- **Cleaning:** If sweat or other liquids adhere to the silicone plug or headphone surface, wipe them clean immediately. Ensure the USB port area is dry before opening the silicone plug for charging.
- **Storage:** Store the headphone in a cool, dry place away from direct sunlight and extreme temperatures.
- **Avoid Disassembly:** Do not attempt to disassemble or replace any parts of the headphone yourself, unless specifically instructed in this manual. Unauthorized disassembly may void your warranty and cause damage.
8. Troubleshooting
If you encounter issues with your Lenovo X3 Pro headphone, try the following steps:
- **Headphone won't power on:** Ensure the battery is charged. Connect to a charger and check the indicator light.
- **Cannot pair with device:**
- Make sure the headphone is in pairing mode (red and blue lights flashing alternately).
- Ensure Bluetooth is enabled on your device.
- Move the headphone closer to your device (within 10m).
- Turn off and on your device's Bluetooth, then try searching again.
- If previously paired, try "forgetting" the device on your phone and re-pairing.
- **No sound or low volume:**
- Check the volume levels on both the headphone and your connected device.
- Ensure the headphone is successfully connected to your device.
- Try playing different audio sources.
- **Charging issues:**
- Verify the charging cable is securely connected to both the headphone and the power source.
- Ensure the power source (e.g., USB adapter) is functional.
- Check the USB charging port for any debris or damage.
- **Sound quality is poor:**
- Ensure the headphone is positioned correctly on your ears for optimal bone conduction.
- Move away from potential sources of interference (e.g., Wi-Fi routers, other Bluetooth devices).
9. User Tips
- **Comfortable Wear:** The ergonomic, lightweight (25g) ear-hook design ensures a stable and comfortable fit, making it ideal for extended wear during sports or daily activities.
- **Outdoor Use:** With IP56 waterproof and dustproof rating, these headphones are suitable for various sports and outdoor conditions. Remember to clean them after exposure to sweat or water.
- **Privacy:** The bone conduction technology is designed to effectively reduce sound leakage, offering a more private listening experience while keeping your ears open to ambient sounds.
- **Gaming Experience:** The low latency feature provides a smoother audio experience, particularly beneficial for video games.
10. Safety Warnings
- Do not attempt to disassemble or replace any parts of the product unless specifically instructed in this manual.
- If any liquid accidentally enters the product, immediately disconnect it from any power source and remove it from use.
- To prevent electric shock, ensure your hands are dry when handling the headphone, especially during installation or removal.
- Keep the product away from heat sources, open flames, and direct exposure to high temperatures.
- Avoid placing the product in environments with strong electromagnetic forces, as this may cause malfunction.
11. Warranty and Support
11.1 Warranty Statement
This product is guaranteed for twelve (12) months from the date of purchase ("Warranty Period"). If the product fails due to quality defects under normal use within this period, it will be repaired free of charge. If deemed irreparable by the manufacturer, it will be replaced free of charge. Repaired or replaced products will continue to be covered for the remainder of the original warranty period (minimum 30 days).
The purchase date is determined by the sales invoice date. If the purchase date cannot be determined, the warranty period will be calculated as thirteen (13) months from the product's manufacturing date.
11.2 Warranty Exclusions
The warranty does not cover:
- Damage due to misuse, abuse, improper transportation, use, maintenance, or storage.
- Damage caused by force majeure (e.g., earthquake, war, fire) or accidents.
- Tearing or fraying due to excessive load.
- Damage caused by sharp objects.
- Products showing signs of burning or water immersion.
- Damage resulting from unauthorized disassembly or modification.
- Normal aging, discoloration, wear, breakage, and other consumption during regular use.
- If the product's original identification label is altered or damaged, the warranty will be void.
11.3 Contact Support
For warranty claims or technical assistance, please contact:
- **After-sales Service Email:** frank@szeysan.cn
- **Service Supervision Hotline:** 400-812-0102
A PDF version of the user manual is available for download at: https://manuals.plus/m/8e4b73257c119dbdda29cb3da5a167ddd642a62668f62255194ec9f0ff1078cf
12. Environmental Information
12.1 Hazardous Substances Table
This table indicates the presence of hazardous substances in the product, compiled in accordance with SJ/T 11364.
| Part Name | Lead (Pb) | Mercury (Hg) | Cadmium (Cd) | Hexavalent Chromium (Cr(VI)) | Polybrominated Biphenyls (PBB) | Polybrominated Diphenyl Ethers (PBDE) |
|---|---|---|---|---|---|---|
| Printed Circuit Assembly | O | O | O | O | O | O |
| Small Structural Parts (e.g., shell) | O | O | O | O | O | O |
**Legend:**
- **O:** Indicates that the content of the hazardous substance in all homogeneous materials of the part is below the limit requirements specified in GB/T 26572.
- **X:** Indicates that the content of the hazardous substance in at least one of the homogeneous materials of the part exceeds the limit requirements specified in GB/T 26572. (Parts marked with "X" cannot be replaced by hazardous substances due to restrictions on global technological development level.)
*Printed circuit board components include printed circuit boards and their parts, electronic components, etc. Depending on the product model, your purchased product may not contain all the above components.
12.2 Environmental Protection Use Period
Electronic and electrical products sold in the People's Republic of China must display a logo indicating their environmental protection use period. The number within the logo represents the product's environmental protection use period under normal conditions.
**Environmental Protection Use Period Logo:**
(Indicates 10 years)
13. Legal Information
"Lenovo", "thinkplus" and other Lenovo logos are trademarks of companies affiliated with Lenovo Group. Other trademarks, company names, product or service names mentioned in this material may be trademarks of Lenovo Group affiliated companies or other companies.
Copyright ©2022 Lenovo (Beijing) Co., Ltd. All rights reserved.