1. Introduction
Thank you for choosing the Lenovo GM2 PRO MAX Wireless Bluetooth 5.4 Earphones. This manual provides essential information on how to set up, operate, and maintain your new earphones. Please read this manual carefully before use to ensure optimal performance and longevity of your device.
2. Safety Information
2.1 FCC Statement
According to Part 15 of the FCC Rules, this device has been tested to meet the restrictions for Class B digital devices. These restraining decrees in providing reasonable protection against harmful disturbances in residential facilities. The device generates and uses radiofrequency energy. If this instruction is not installed and used in accordance with the regulations, it may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this device has built for radio or television reception into harmful interference, the device can be determined by turning it off and on when the user is encouraged to try to pass through one or several more measures below:
- Redirect or reposition the receiving antenna.
- Increase the distance between device and receiver.
- Sockets connected to devices on circuits different from the receiver are connected.
- Please consult a dealer or experienced radio/TV technician for assistance.
This device complies with Part 15 of the FCC Rules. The operation is restricted by the following two conditions:
- The device shall not cause harmful interference.
- The device must accept any received interference, including interference that may cause unexpected operation. Changes or modifications that are not explicitly approved by the compliance responsible party may invalidate the user's permission to operate the device.
2.2 Product Use Considerations
- Do not try to remove or replace any parts in the product except the operation mode specially marked in the manual.
- This product contains a built-in rechargeable battery. Do not impact, extrude, puncture, or short-circuit the battery. If too high temperature, deformation, swelling, leakage, or other abnormal phenomena occur, please stop using. Do not put the battery in open fire, sunlight, heater, furnace, and other high temperature and high-pressure environments. It is forbidden to use the battery after immersion. After using the earphone, do not put the earphone in a high-temperature environment such as humidity, dust, lampblack, steam, direct sunlight, and other high-pressure conditions, so as to avoid damage to the earphone and battery. The battery can be charged and discharged for limited times and will eventually age. The battery can be replaced when the battery is abnormal, but do not replace the battery yourself. If the battery is replaced improperly, there will be an explosion risk. You can only replace the same or equivalent type of battery through the after-sales service provider.
- After the product is scrapped, do not throw the product into the fire. Waste treatment should be handled in strict accordance with garbage classification. Please use this product reasonably and correctly to avoid causing certain damage and environmental damage.
- In the process of using headphones, due to distance, middle obstacles, or other radio signal (Bluetooth signal, WiFi signal) and a series of interference, headphones may experience occasional stuttering, voice synchronization issues, or disconnection when listening to music, watching videos, playing games, and so on. In such cases, please reconnect headphones or move away from the interference source.
- When charging, the charger should use charging equipment with an output voltage of DC 5V1A and select charging equipment certified by a regular manufacturer. Do not use a fast charger to avoid excessive battery load and battery damage. Continuous charging time should not exceed the specified charging time. Do not use when charging to avoid damage.
2.3 Hazardous Substances in Products
The following table details the name and content of hazardous substances in the product, compiled in accordance with SJ/T 11364.
| Part Name | Pb | Hg | Cd | Cr(VI) | PBB | PBDE |
|---|---|---|---|---|---|---|
| Printed circuit assembly | X | O | O | O | O | O |
| Small structural parts | O | O | O | O | O | O |
Note:
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. The parts marked with "X" on the form are all harmful due to the limitations of global technological development. Substitution of substances.
Printed circuit board components*: including printed circuit boards and their parts, electronic components, etc. Depending on the product model, the product you purchased may not contain all the above components.
Electrical and electronic products sold in the People's Republic of China will be printed on the "Environmental protection period of use" (EPuP) symbol. The number in the circle represents the product's normal environmental life.
3. Package Contents
Ensure all items are present in the package:
- 2 x Lenovo GM2 PRO MAX Earphones
- 1 x Charging Case
- 1 x User Manual
- 1 x Type-C Charging Cable
- 2 x Silicone Ear Caps (Small)
- 2 x Silicone Ear Caps (Large)
- 1 x Certificate of Conformity
4. Specifications
| Attribute | Value |
|---|---|
| Product Model | XT53 |
| Bluetooth Version | V5.4 |
| Transmission Distance | ≥10m |
| Speaker Diameter | Φ10mm |
| Impedance | up to 32 Ω |
| Signal-to-Noise Ratio | >90dB |
| Total Harmonic Distortion | < 5% (1%) |
| Frequency Response Range | 20Hz~20KHz |
| Microphone Sensitivity | -24dB ± 4dB |
| Headphone Rated Power | 0.2W |
| Headphone Compartment Rated Power | 1.5W |
| Headphone Rated Input | 5V = 40mA |
| Headphone Compartment Rated Input | 5V 300mA |
| Headphone Li-ion Battery Capacity | 40mAh |
| Headphone Compartment Lithium Battery Capacity | 300mAh |
| Headset Usage Time (single battery life) | About 5 hours |
| Headset Charging Time | About 1 hour |
| Headphone Compartment Charging Time | About 1.5 hours |
| Material | PC |
| Sound Isolating | Yes |
| Waterproof Rating | IPX4 |
| With Microphone | Yes |
| Active Noise-Cancellation | Yes |
| Volume Control | Yes |
| Control Button | Yes |
| Vocalism Principle | Dynamic |
| Wireless Type | Bluetooth |
| Communication | Wireless |
| Style | TWS in-ear headphones |
| Certification | CE, FCC |
| Magnet Type | Neodymium |
| Codecs | Apt-X HD |
All technical information is subject to actual performance.
5. Setup
5.1 Power On
- Method 1: Open the cover of the earphone compartment, and the earphones will automatically turn on.
- Method 2: Press and hold the earphone touch button for 2-4 seconds to power on the earphone.
5.2 Power Off
- Method 1: Put the headphones into the charging case directly and close the case to turn off.
- Method 2: The headset will turn off automatically after 5 minutes without connection.
- Method 3: When the headset is turned on and not connected to the device, long press the headset touch button for 4-6 seconds. The headset will be turned off (one side of the headset operation, left/right ear at the same time). After that, the headset will turn off (one side headset operation, left/right ear turn off at the same time).
5.3 Pairing to a Bluetooth Device
- Step 1: Open the upper cover of the charging case. The main and auxiliary headphones will automatically connect to each other.
- Step 2: Open the Bluetooth list on your smart device, search for "联想thinkplus-XT53" (Lenovo thinkplus-XT53), and connect. Single ear use is supported.
5.4 Restore Factory Settings
When the headset is turned on and not connected, perform 5 consecutive taps on both the left and right headset touch buttons. (Under binaural pairing state, single-ear operation will result in binaural synchronization shutdown).
6. Operating Instructions
6.1 Intuitive Touch Controls
Music Playing Mode
- Left Headset:
- Triple-tap: Previous song
- Single-tap: Volume down
- Double-tap: Pause/Play
- Right Headset:
- Triple-tap: Next song
- Single-tap: Volume up
- Double-tap: Pause/Play
Hands-Free Function (on incoming call)
- Answer: Double-tap left/right headset touch button.
- Hang up: In call state, double-tap left/right headset touch button.
- Reject: Long press left/right headset touch button for 2 seconds.
Activate Voice Assistant (Smart device supports voice assistant)
- Activation (Left Headset): Long press the left headset (L) touch button for 2 seconds.
Mode Switching (Right Headset)
- Game Mode: Press and hold the right earphone touch button for 2 seconds to enter game mode. (Beep: Game mode on)
- Music Mode: Long press the right earphone touch button for 2 seconds to enter music mode. (Beep: Game mode off)
6.2 LED Indicator Status
Earbuds LED Indicator
- Headset on: Blue light on for 1 second.
- Headset off: Blue light flashes 3 times.
- When searching for devices: Blue light flashes in the main ear, and the light goes out in the vice ear.
- When successfully connected to the device: Light off.
- Headset disconnected: Main ear blue light flashes, vice ear light off.
- Headset low battery: Blue light flashes.
Case LED Indicator
- Charging the headphone compartment: The LED digit display flashes, and the power percentage rises gradually according to the power level.
- Headphone compartment low battery: Power remaining 5%, the digital display screen figures begin to flash.
- Headphone compartment fully charged: LED digital display power display number 100.
- Open/close the cover: The blue light of the headphone compartment lights up for 10 seconds and then goes out.
- Headphone compartment to headset charging: LED digital display of the current power lights up, left and right headset power scroll bar, until the headset is fully charged LED digital display off.
- The headphone compartment is fully charged for the headset: The LED display goes out.
7. Maintenance
To ensure the longevity and optimal performance of your Lenovo GM2 PRO MAX earphones, please follow these maintenance guidelines:
- Cleaning: Regularly clean the earphones and charging case with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials.
- Storage: Store the earphones in their charging case when not in use to protect them from dust, scratches, and accidental damage.
- Temperature: Avoid exposing the earphones to extreme temperatures (hot or cold), direct sunlight, or high humidity.
- Charging: Use only the provided Type-C charging cable and a certified 5V1A charger. Do not use fast chargers, as this can damage the battery. Avoid overcharging; disconnect once fully charged.
- Water Resistance: The earphones have an IPX4 waterproof rating, meaning they are resistant to splashes and sweat. Do not submerge them in water or expose them to heavy rain.
- Battery Care: Avoid completely draining the battery frequently. Charge the earphones regularly, even if not used for extended periods, to maintain battery health.
8. Troubleshooting
If you encounter any issues with your earphones, please refer to the following common problems and solutions:
- Earphones not turning on: Ensure the earphones are charged. Place them in the charging case and check the case's battery level.
- Earphones not pairing: Make sure Bluetooth is enabled on your device and the earphones are in pairing mode (open the case). If issues persist, try restoring factory settings.
- Intermittent connection or audio dropouts: This can be caused by interference. Try moving closer to your paired device or away from other electronic devices that might cause interference (e.g., Wi-Fi routers, microwaves). Reconnecting the earphones can also help.
- No sound from one earbud: Ensure both earbuds are charged and properly paired. Try placing both back in the case, closing it, and then reopening to reset the connection.
- Touch controls not responding: Ensure your fingers are clean and dry. If the issue persists, try restarting the earphones or restoring factory settings.
- Charging issues: Check if the charging cable is securely connected to both the case and the power source. Ensure the charging pins on the earbuds and inside the case are clean and free of debris. Use a certified 5V1A charger.
9. User Tips
- Comfort: The earphones are designed to fit most ear sizes comfortably. Experiment with the included silicone ear caps (S and L) to find the best fit for your ears, which can also improve sound quality and noise isolation.
- Automatic Connection: After the initial pairing, your earphones will automatically connect to your device when you open the charging case, provided Bluetooth is enabled on your device.
- Charging Times: Expect approximately 1.5 hours to fully charge the earphone compartment and about 1 hour to fully charge the earphones themselves.
- Game Mode: For the best gaming experience with ultra-low latency, remember to switch to Game Mode by long-pressing the right earphone touch button for 2 seconds.
10. Warranty and Support
For detailed warranty information, technical support, or service inquiries, please refer to the official user manual PDF provided by Lenovo. You can typically find this document on the product support page of the Lenovo website or through the link provided at the time of purchase.
A comprehensive user manual in PDF format is available for download. Please refer to the User Manual (PDF) for additional details and information.
11. Product Showcase Video
Watch this video for a visual guide on the features and usage of your Lenovo GM2 PRO MAX earphones.
