1. Introduction
Thank you for choosing the Lenovo TH20 Wireless Gaming Headphones. These headphones offer a versatile audio experience with dual-mode connectivity (wireless Bluetooth 5.3 and wired AUX), active noise-cancellation, and a comfortable foldable design. This manual will guide you through the setup, operation, and maintenance of your new headphones.
2. Package Contents
Please check the box for the following items:
- 1 x Lenovo TH20 Wireless Gaming Headphones
- 1 x User Manual
- 1 x Type-C Charging Cable
- 1 x 3.5mm Audio Cable
3. Product Overview
Familiarize yourself with the headphone controls and features:
1. Click: Volume Up
2. Pause/Play/Answer. Double-click to call a recent number (Bluetooth connected).
3. Click: Volume Reduction
4. Microphones
Long Press (on 1): Next Song
Long Press (on 3): Last Song
4. Setup
4.1. Charging the Headphones
Before first use, fully charge your headphones.
- Connect the supplied Type-C charging cable to the charging port on the headphones.
- Connect the other end of the cable to a USB power source (e.g., computer, wall adapter).
- The indicator light will show charging status (specific color/behavior not detailed, refer to product for visual cues).
- A full charge takes approximately 2.5 hours.
4.2. Bluetooth Pairing
To connect your headphones wirelessly:
- Ensure the headphones are powered off.
- Press and hold the Power button (usually the Play/Pause button) until the indicator light flashes, indicating pairing mode.
- On your device (smartphone, tablet, computer), enable Bluetooth and search for available devices.
- Select "Lenovo TH20" from the list of devices.
- Once connected, the indicator light will change (e.g., solid blue) and a voice prompt may confirm the connection.
4.3. Wired Connection (AUX Mode)
To use the headphones in wired mode:
- Connect one end of the 3.5mm audio cable to the AUX port on the headphones.
- Connect the other end to the 3.5mm audio jack on your device.
- The headphones will automatically switch to wired mode. This mode can be used even when the headphones are out of battery.
5. Operating Instructions
5.1. Power On/Off
- Power On: Press and hold the Power button until the indicator light turns on.
- Power Off: Press and hold the Power button until the indicator light turns off.
5.2. Music Playback
- Play/Pause: Click the Play/Pause button (2).
- Volume Up: Click the Volume Up button (1).
- Volume Down: Click the Volume Down button (3).
- Next Track: Long press the Volume Up button (1).
- Previous Track: Long press the Volume Down button (3).
5.3. Call Management
- Answer/End Call: Click the Play/Pause button (2).
- Reject Call: Press and hold the Play/Pause button (2).
- Redial Last Number: Double-click the Play/Pause button (2) when connected via Bluetooth.
5.4. Active Noise-Cancellation (ANC)
The headphones feature active noise-cancellation. The method to activate/deactivate ANC is typically a dedicated button or a long press on a specific control. Please refer to the physical product for the exact ANC control button.
5.5. Foldable Design
The headphones feature a foldable design for easy storage and portability.
5.6. Device Compatibility
The Lenovo TH20 headphones are universally compatible with various operating systems.
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the headphones. Do not use harsh chemicals or abrasive materials.
- Storage: When not in use, store the headphones in a cool, dry place, away from direct sunlight and extreme temperatures. Utilize the foldable design for compact storage.
- Battery Care: To prolong battery life, avoid fully discharging the headphones frequently. Charge them regularly, even if not in constant use.
- Water Resistance: The headphones are waterproof. However, avoid prolonged exposure to water or submerging them.
7. Troubleshooting
| Problem | Solution |
|---|---|
| Headphones won't turn on | Ensure the headphones are fully charged. |
| Cannot pair via Bluetooth | Ensure headphones are in pairing mode (flashing indicator light). Turn off and on Bluetooth on your device. Move closer to the device. |
| No sound in wireless mode | Check if headphones are connected to your device. Adjust volume on both headphones and device. Ensure media is playing. |
| No sound in wired mode | Ensure the 3.5mm audio cable is securely connected to both the headphones and the audio source. Test with another cable if possible. |
| Poor sound quality | For Bluetooth, ensure no obstructions between headphones and device. For wired, check cable connection. Ensure audio source quality is good. |
| Microphone not working | Ensure the headphones are properly connected and selected as the input device on your system. Check if the microphone is muted. |
8. Specifications
| Feature | Detail |
|---|---|
| Model | TH20 |
| Communication | Wireless+Wired (Dual Mode) |
| Bluetooth Version | 5.3 |
| Wireless Range | Up to 10 meters / 33 feet |
| Driver Diameter | 40mm |
| Frequency Response Range | 20Hz - 20000Hz |
| Sensitivity | 110dB |
| Impedance Range | Up to 32 Ω |
| Battery Capacity | 400mAh |
| Playback Time | Approx. 30 hours |
| Charging Time | Approx. 2.5 hours |
| Charging Method | Cable (Type-C) |
| Audio Interface | AUX (3.5mm Jack) |
| Features | With Microphone, Detachable Cable, Active Noise-Cancellation, Volume Control, Control Button, Sound Isolating, Waterproof, Foldable Design |
| Material | Plastic |
| Certifications | CE, FCC |
9. User Tips
No specific user tips were found in the provided reviews or Q&A. However, general best practices for headphones include:
- For optimal sound quality, ensure a stable Bluetooth connection or a fully inserted AUX cable.
- Adjust volume levels gradually to protect your hearing.
- Take short breaks during long listening sessions to prevent ear fatigue.
10. Warranty and Support
Lenovo products are designed for reliability and performance. For warranty information and technical support, please refer to the official Lenovo support channels or the documentation provided with your purchase. Keep your proof of purchase for warranty claims.
