Lenovo X3/X4/X5 Wireless Bluetooth Bone Conduction Headphones User Manual

1. Product Overview

This manual provides detailed instructions for the Lenovo X3, X4, and X5 series of Wireless Bluetooth Bone Conduction Headphones. These headphones are designed to deliver audio through bone conduction, offering an ear-free listening experience ideal for sports and outdoor activities. Key features include Bluetooth 5.0 connectivity, varying levels of waterproofing (IPX5, IP56, IPX8), and in some models, built-in MP3 storage.

A more detailed user manual in PDF format can be found here.

2. Package Contents

Please check the box for the following items:

• 1 x Lenovo Bone Conduction Headphone (X3, X4, or X5 model)
• 1 x USB Charging Cable
• 1 x User Manual
• (For X5 model only) 1 x Swimming Accessory

3. Product Diagram

Familiarize yourself with the main components of your headphone:

Image: Illustration of the bone conduction design, showing how sound transmits through the bone to the auditory nerve.

Image: Exploded view of the bone conduction vibrator, detailing components like the composite diaphragm, magnetic coil, vibration element, and sponge silencing layer.

Key Components (General):

• Plus Key: Volume Up / Multi-function
• Minus Key: Volume Down / Multi-function
• TYPE-C Charging Port: For charging the device.
• Microphone: For calls and voice assistant.
• Bone-conduction Vibrator: The part that rests on your cheekbones to transmit sound.
• Indicator Light: Shows power, charging, and connection status.

4. Setup and Basic Operation

4.1. Power On/Off

• Power On: Long press the Plus key for 3 seconds. The red and blue indicator lights will flash.
• Power Off: Long press the Plus key for 3 seconds.

4.2. Bluetooth Connection

1. Ensure the headset is powered on and in pairing mode (red and blue lights flashing).
2. On your smart device (phone, tablet, PC), go to Bluetooth settings.
3. Turn on Bluetooth.
4. Search for available devices. The headset will appear as "联想thinkplus-X4" (or similar for X3/X5).
5. Select the headset to connect.
6. Once connected, the indicator light will show a slow blue flash, then turn off when music is playing.

4.3. Charging

• Connect the provided USB charging cable to the TYPE-C charging port on the headphone.
• Plug the other end of the USB cable into a 5V charger.
• The indicator light will show red during charging.
• When fully charged, the indicator light will turn off or change color (refer to specific model manual if different).
• Important: Always close the TYPE-C silicone plug during use to prevent water and sweat from entering. Ensure the port is completely dry before opening the silicone plug for charging.

Image: Close-up of the Lenovo X4 headphone showing the TYPE-C charging port, microphone, and control buttons.

5. Operating Functions

The headphones feature multi-functional buttons for easy control:

Image: Visual representation of button controls for both Bluetooth and MP3 modes.

5.1. MP3 Playing Mode (X5 Model Only)

The Lenovo X5 model features a built-in 8GB memory, allowing you to store and play music directly from the headphones without needing a Bluetooth connection to a device.

1. Transferring Music: Connect the headphone to your computer using the provided USB charging cable. The headphone will appear as a storage device. Drag and drop your desired music files (MP3 format recommended) into the headphone's storage.
2. Switching Modes: Use the "Four times click" operation (as described in the table above) to switch between Bluetooth Mode and MP3 Mode.

Image: Visual of the X5 model highlighting its 8GB built-in memory for MP3 playback, capable of storing over 1500 songs.

6. Specifications

Below are the detailed specifications for each model:

6.1. Lenovo X3 Specifications

Image: Lenovo X3 Bone Conduction Earphone.

6.2. Lenovo X4 Specifications

Image: Lenovo X4 True Bone Conduction Earphone.

6.3. Lenovo X5 Specifications

Image: Lenovo X5 Bone Conduction Earphone.

7. Maintenance and Care

• Water Protection: Always ensure the TYPE-C charging port's silicone plug is securely closed during use, especially when exposed to water or sweat.
• Drying Before Charging: If the headphones have been exposed to water, thoroughly dry the charging port area before opening the silicone plug and connecting the charging cable.
• Avoid Extreme Conditions: Do not place the headphones in environments with strong electromagnetic forces, high temperatures, or excessive humidity, as this can cause malfunctions.
• Cleaning: Use a soft, dry cloth to clean the headphones. Avoid using harsh chemicals or abrasive materials.
• Storage: Store the headphones in a cool, dry place away from direct sunlight when not in use. The memory titanium alloy frame allows for 360-degree bending for flexible storage without deformation.

Image: A person swimming while wearing the Lenovo X5 headphones, highlighting its IPX8 waterproof capability.

Image: The flexible memory titanium alloy frame, demonstrating 360-degree bending for durability and comfortable fit.

8. Troubleshooting

If you encounter any issues, please refer to the following common solutions:

• Headphones not powering on: Ensure the battery is charged. Connect to a charger and check the indicator light.
• Cannot connect via Bluetooth:
  1. Ensure the headphones are in pairing mode (red and blue lights flashing).
  2. Turn off and on Bluetooth on your smart device.
  3. Delete previous pairings for the headphones on your device and try pairing again.
  4. Ensure the headphones are within the 10-meter operation range of your device.
• No sound or low volume:
  1. Check the volume level on both the headphones and your connected device.
  2. Ensure the headphones are properly connected via Bluetooth.
  3. For X5 model, ensure you are in the correct mode (BT or MP3).
• Charging issues:
  1. Verify the charging cable and 5V charger are working correctly.
  2. Ensure the TYPE-C charging port is clean and dry, and the cable is securely inserted.
• Accidental liquid exposure: If liquid enters the product, immediately power off the headphones and dry them thoroughly before attempting to use or charge them again.

9. User Tips

• For optimal sound quality and comfort, ensure the bone conduction vibrators are positioned correctly on your cheekbones, just in front of your ears.
• When using the X5 model's MP3 mode, remember to transfer your favorite music files to the built-in 8GB memory for an untethered listening experience.
• The flexible design of the headphones allows for easy adjustment to fit various head sizes, ensuring a secure and comfortable fit during activities.
• Regularly check the charging port's silicone plug to ensure it's sealed, especially before engaging in water-related activities, to maintain the waterproof integrity.

10. Warranty and Support

10.1. Warranty Statement

The product is guaranteed for twelve (12) months from the date of purchase. Under normal conditions of use, if quality defects or damage occur, free repair will be provided. If the manufacturer confirms it cannot be repaired, a free replacement will be issued. Repaired or replaced products will continue to enjoy the remaining warranty period (minimum 30 days). The purchase date on the sales ticket shall prevail; if the purchase date cannot be determined, the warranty period will be calculated as 13 months from the manufacturing date.

To claim warranty service, please contact the product service hotline or email provided below and follow the instructions.

10.2. Warranty Exclusions

The warranty does not apply to the following situations:

• The validity period of the warranty has been exceeded.
• Alteration of the warranty card or product code that does not match the product body.
• Damage caused by misuse, abuse, improper transportation, maintenance, or storage.
• Failure or damage caused by force majeure (e.g., earthquake, war, fire) or accident.
• Damage to zippers and buckles due to excessive force.
• Disconnection or tearing caused by excessive load.
• Any damage caused by sharp objects.
• Products with signs of burning or flooding.
• Damage caused by unauthorized disassembly.
• Aging, discoloration, abrasion, rupture, and other losses occurring during normal use.
• If the original identification label of the product is changed or damaged.

The completeness and appearance of the product and accompanying materials are not within the scope of this guarantee. You should check them upon receipt and raise any objections to discrepancies immediately.

10.3. Hazardous Substances Information

This product complies with environmental protection requirements. The table below details the name and content of hazardous substances:

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 homogeneous material of the part exceeds the limit requirements specified in GB/T 26572. The parts marked with "X" cannot be replaced by non-hazardous substances due to restrictions in the global technological development level.

Electronic and electrical products sold in the People's Republic of China must bear this logo. The number in the logo represents the product's environmental protection use period under normal environmental conditions.

10.4. Contact Information

• After-sales service Email: frank@szeysan.cn
• Service supervision hotline: 400-812-0102

"Lenovo" and "thinkplus" are trademarks of Lenovo Group or its affiliated companies. Other mentioned trademarks, company names, products, or services may be trademarks of Lenovo Group or other companies.

Copyright © 2022 Lenovo (Beijing) Co., Ltd. All rights reserved.

WARNING: Please mind potential fire risk and strictly follow the instruction manual for charging and storage. For disposal, please check your local authority's website for more information and dispose of the lithium-ion battery safely in accordance with the applicable legal requirements.