1. Introduction
Thank you for choosing the Lenovo XT58 AI Translate Earphones. These true wireless stereo (TWS) earbuds combine advanced Bluetooth 5.4 connectivity with HIFI stereo surround sound, intelligent noise reduction, and innovative AI real-time translation capabilities. Designed for comfort and versatility, they are perfect for music, gaming, calls, and international communication.
2. Package Contents
Please check the box for the following items:
- 2 x Bluetooth Earphones (Left and Right)
- 1 x Charging Case
- 1 x USB Type-C Charging Cable
- 1 x User Manual
- 2 x Silicone Ear Caps (Small)
- 2 x Silicone Ear Caps (Large)
3. Product Overview
The Lenovo XT58 earphones feature an ergonomic in-ear design for comfortable wear. The charging case includes a dual digital LED display to show the power levels of both the case and the individual earbuds. Each earbud is equipped with touch controls for easy management of audio and calls.
4. Setup Instructions
4.1. Charging the Earphones and Case
- Place the earphones into the charging case. Ensure they are correctly seated.
- Connect the provided USB Type-C charging cable to the charging port on the case and to a power source.
- The LED display on the case will show the charging progress (1-100) for the case and individual earbud battery levels.
- Charging time for the headphone compartment is approximately 1.5 hours. Earphone charging time is also approximately 1.5 hours.
4.2. Bluetooth Pairing
- Open the charging case. The earphones will automatically enter pairing mode.
- On your device (smartphone, tablet, laptop), enable Bluetooth.
- Search for available Bluetooth devices and select "Lenovo XT58" from the list.
- Once connected, the earphones are ready for use. After the first connection, they will automatically connect to your device when the case is opened.
4.3. AI Translation App Setup
The AI translation function requires a dedicated mobile application. Follow these steps:
- Download the App: Scan the QR code provided in the manual or on the product packaging to download the "NebulaBuds" app on your mobile phone.
- Login: Open the app and log in or create an account.
- Take out Earphones: Remove the earphones from the charging case.
- Connect Bluetooth via App: Enter the app and follow the on-screen instructions to connect the earphones via Bluetooth. You may need to grant permissions for Bluetooth, WLAN, and cellular data.
5. Operating Instructions
5.1. Basic Touch Controls
The left and right earbuds are equipped with touch functions for easy control:
- Previous Song: Triple-click the left earphone touch button.
- Next Song: Triple-click the right earphone touch button.
- Volume Up: Click the right earphone touch button.
- Volume Down: Click the left earphone touch button.
- Pause/Play: Double-click either earphone touch button.
- Answer Call: Double-click either earphone touch button.
- Hang Up Call: Double-click either earphone touch button (while in a call).
- Reject Call: Long press either earphone touch button for 1-3 seconds.
5.2. AI Translation Functions (via NebulaBuds App)
The NebulaBuds app provides various translation modes:
- Simultaneous Interpretation: Translate others' speech into your own language and play it through headphones. Ideal for forums, classrooms, and lectures.
- Face-to-Face Translation (Binaural): One earphone per person, with the phone placed in between. Translates the languages of both parties and broadcasts them through the earphones.
- Headphones + Phone Mode (Face-to-Face Translation): You wear headphones, and the phone broadcasts the translated speech to the other person.
- On-Site Recording: Transcribe real-time on-site communication into text, useful for meeting minutes.
- Audio and Video Calls: Real-time translation for online calls. The other party does not need to download the app. (Select "Audio Video Call" mode and grant microphone/camera permissions).
- AI Voice Intelligent Dialogue: Engage in real-time voice conversations, ask questions, and receive answers from the AI.
5.3. Audio Features
- HIFI Stereo Surround Sound: The 10mm speakers with triple-layer composite diaphragms provide powerful bass, stunning treble, and clear mids for an immersive music experience.
- Intelligent Noise Reduction: Built-in noise reduction effectively reduces low-frequency noise in the environment. CVC noise reduction ensures clear voice calls by isolating speech from wind or crowd noise.
- Low Latency: Equipped with a dual-mode chip that minimizes latency, preserving sound quality for smooth gaming and music.
6. Maintenance
- Cleaning: Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth. Do not use harsh chemicals or abrasive materials.
- Storage: When not in use, store the earphones in their charging case to protect them from dust and damage.
- Water Resistance: The earphones are IPX4 waterproof, meaning they are resistant to splashing water and sweat. Do not submerge them in water or expose them to heavy rain.
- Battery Care: To prolong battery life, avoid fully discharging the earphones and charging case frequently. Charge them regularly, even if not in constant use.
7. Troubleshooting
7.1. Common Issues and Solutions
- Earphones not pairing: Ensure both earphones are in the charging case, then open the lid to activate pairing mode. Check your device's Bluetooth settings and try reconnecting.
- No sound from one earbud: Place both earbuds back into the charging case, close the lid, wait a few seconds, then open it again. This often re-syncs them.
- Translation function not working: Make sure the "NebulaBuds" app is installed, updated, and properly connected to the earphones. Verify that all necessary permissions (Bluetooth, microphone, camera, internet) are granted to the app. Ensure a stable internet connection for translation services.
- Poor sound quality: Check if the ear caps are properly fitted to your ears. Try different sizes of ear caps for a better seal. Ensure the earphones are within the Bluetooth range of your device.
- Earphones not charging: Ensure the charging cable is securely connected to both the case and the power source. Check the charging case's battery level. Clean the charging contacts on both the earbuds and the case.
8. Specifications
| Feature | Detail |
|---|---|
| Brand Name | Lenovo |
| Model Name | XT58 |
| Material | Metal, ABS, Silica Gel |
| Bluetooth Version | V5.4 |
| Communication | True wireless |
| Wireless Type | Bluetooth |
| Connectors | Type-C |
| Earphone Battery Capacity | 40mAh |
| Charging Case Battery Capacity | 400mAh |
| Headphone Charging Time | About 1.5 hours |
| Charging Case Charging Time | About 1.5 hours |
| Headphone Usage Time | About 5 hours (single battery life) |
| Maximum Wireless Range | 10m-20m |
| Driver Diameter | 10mm |
| Frequency Response Range | 20 - 20000Hz |
| Impedance Range | up to 32 Ω |
| Max Output | 10mW |
| Total Harmonic Distortion | 1% |
| With Microphone | Yes |
| Waterproof | Yes (IPX4) |
| Active Noise-Cancellation | No (Features Call Noise Cancelling) |
| Sound Isolating | Yes |
| Control Button | Yes |
| Volume Control | Yes |
| Codecs | AAC, sbc |
| Certification | CE, FCC |
9. User Tips
- Optimal Fit: Experiment with the included S and L size silicone ear caps to find the best fit for your ears. A good seal enhances sound quality and noise isolation.
- App Exploration: Take time to explore all the translation modes within the NebulaBuds app. Each mode is designed for specific communication scenarios.
- Regular Charging: For uninterrupted use, make it a habit to place the earphones back in their charging case when not in use. The LED display helps you monitor battery levels easily.
- Firmware Updates: Check the NebulaBuds app periodically for any firmware updates for your earphones. Updates can improve performance and add new features.
10. Warranty and Support
For warranty information and technical support, please refer to the official Lenovo support channels or contact your retailer. Keep your proof of purchase for any warranty claims.