1. Introduction
The Lenovo LP75 AI Bluetooth Earphones are advanced TWS (True Wireless Stereo) sport earbuds designed for seamless audio experience and intelligent communication. Featuring real-time AI translation for over 150 languages, an AI Assistant with multiple applications, and IPX5 waterproofing, these earphones are perfect for travel, business, sports, and daily use. The ergonomic ear-hook design ensures a secure and comfortable fit.
2. Package Contents
Please check the box for the following items:
- 2 x Bluetooth Earphones
- 1 x Charging Case
- 1 x USB Charging Cable
- 1 x User Manual
3. Specifications
| Feature | Detail |
|---|---|
| Brand | Lenovo |
| Model | LP75 AI |
| Material | Metal, Plastic |
| Bluetooth Version | V5.3 |
| Driver Diameter | 13mm |
| Earphone Battery Capacity | 40mAh (per earphone) |
| Charging Case Battery Capacity | 300mAh |
| Earphone Single Usage Time | Approximately 6 hours |
| Total Battery Life (with charging case) | Up to 48 hours |
| Earphone Charging Time | Approximately 1 hour |
| Charging Interface | Type-C |
| Wireless Range | Up to 10 meters / 33 feet |
| Frequency Response Range | 20 - 20000Hz |
| Sensitivity | 96dB |
| Impedance Range | Up to 32 Ω |
| Total Harmonic Distortion | 1% |
| Waterproof Rating | IPX5 (Waterproof and Sweatproof) |
| Features | AI Real-time Translation (150+ languages), AI Chat, AI Assistant, AI Music/Image Creation, LED Digital Display, Ear-hook Design, NFC Technology, Sound Isolating, With Microphone, Playback Control, Volume Control |
| Colors Available | Black, White |

Detailed earphone parameters including battery capacity and charging times.

Visual representation of 48 hours total battery life, 6 hours usage time, 1 hour charging time, and 300mAh charging compartment capacity.
4. Setup Guide
4.1 App Download and Installation
- Scan the QR code provided in the manual or on the product packaging to download the official 'Nebulabuds APP'. The app is available for both iOS and Android devices.
- Install the application on your smartphone.

Instructions for downloading the Nebulabuds APP via QR code and activating the device.
4.2 Device Pairing and Activation
- Ensure your earphones are charged and in pairing mode.
- On your smartphone, enable Bluetooth and search for 'Lenovo LP75 AI' in the available devices list. Select it to connect.
- Open the 'Nebulabuds APP'.
- Navigate to the settings within the app and look for 'Bind New Device' or a similar option.
- Enter or scan the activation code (if prompted) and click 'Connect' to activate your device and gain full access to translation features.
- Refer to the 'User Guide' within the Nebula Setting of the app for more detailed instructions.
5. Operating Instructions
5.1 Basic Controls
- Power On/Off: Earphones automatically power on when removed from the charging case and power off when placed back in.
- Music Playback: Use the control buttons on the earphones for play/pause, skip tracks, and volume adjustment.
- Call Management: Answer/end calls using the control buttons.
5.2 Switching Between Modes
The earphones support switching between Music Mode and AI Mode:
- Music Mode: Press and hold the control button for 2 seconds to activate music playback.
- AI Mode: This mode enables real-time translation and AI assistant functions. It supports face-to-face translation and two-way translation for global negotiations or travel.

Visual guide for switching between Music Mode and AI Mode.
6. AI Features
The Lenovo LP75 AI earphones integrate advanced artificial intelligence for enhanced communication and productivity.
6.1 Real-Time Translation
- Multilingual Support: Capable of translating between over 150 languages.
- Face-to-Face Translation: Click the earphone to activate real-time translation for direct conversations.
- Headphones + Phone Mode: One person wears the earphones, the other uses the phone, with speech automatically recognized and translated.
- Binaural Translation: Both earphones can be used for translation, displaying translated text on the connected smartphone.
- Cross-language Communication: Improve efficiency in business meetings with real-time translation and external subtitles.

Overview of real-time translation for 135 languages, white noise sleep mode, and DIY app equalizer.

Illustration of face-to-face translation in action.

Demonstration of binaural translation with translated text displayed on a smartphone.

Example of using headphones with a phone for translation.

Visualizing cross-language communication with real-time translation during a video call.
6.2 AI Assistant & Dialogue Modes
- AI Assistant: Access over 200 built-in applications for creation, office tasks, study, legal assistance, and more.
- AI Dialogue Mode / AI Voice Conversation: Engage in real-time voice dialogue with the system through the app.
- Real-time Record of Translated Text: Conversations are transcribed and translated into text in real-time, synchronized to the mobile app for later review.

Screenshot of the AI Dialogue Mode interface on a smartphone.

App interface showing real-time transcription and translation of conversations.

Screenshot of the AI Assistant interface with various applications.
6.3 AI Creative Functions
- AI Chat: A user-friendly interface designed for comfortable dialogue.
- AI Music: Generates complete music works based on advanced AI technology.
- Image Generator: Upload existing images to generate new ones based on style and content.

Screenshot of the AI Chat page interface.

Screenshot of the AI Music function generating music.

Screenshot of the Image Generator area within the app.
7. Maintenance
- Cleaning: Regularly clean the earphones and charging case with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials.
- Water Resistance: The earphones are IPX5 waterproof and sweatproof, meaning they can resist splashes and sweat. Do not submerge them in water or expose them to heavy rain. Ensure they are dry before placing them back in the charging case.
- Storage: When not in use, store the earphones in their charging case to protect them from dust and damage.
- Charging: Use the provided USB Type-C cable for charging. Avoid using damaged cables or chargers.

Visual demonstration of the earphones' IPX5 waterproof and sweatproof capabilities.
8. Troubleshooting
- Earphones not pairing: Ensure both earphones are charged, out of the case, and your device's Bluetooth is on. Try restarting your phone and the earphones.
- Translation not working: Check your internet connection, ensure the 'Nebulabuds APP' is open and the earphones are correctly activated and connected within the app. Verify language settings.
- No sound: Check volume levels on both your device and the earphones. Ensure earphones are properly connected.
- Charging issues: Verify the charging cable and adapter are working. Ensure the charging contacts on the earphones and case are clean and free of debris.
9. Warranty and Support
For warranty information and technical support, please refer to the official Lenovo support channels or contact the retailer where you purchased the product. Keep your proof of purchase for any warranty claims.

Lenovo Thinkplus branding, indicating genuine product.





