Introduction
The Cuifati TWS B11 Language Translation Earbuds are advanced wireless headphones designed for seamless real-time communication across language barriers. Featuring Bluetooth 5.3 connectivity, these earbuds support translation for 74 languages and 70 accents, offering high accuracy and low latency. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure optimal performance of your device.

Image: The TWS B11 Language Translation Earbuds and their charging case.
Key Features
- Multilingual Translation: Supports 74 languages and 70 accents, covering over 90% of the global population, with up to 97% accuracy using four leading translation engines.
- Real-time Translation: Interprets almost simultaneously with a low latency of 0.5 seconds, supported by 15 global servers.
- Four Translation Modes: Includes Touch Mode, External Mode (Speaker Mode), Free Talk Mode, and Offline Mode to suit various communication scenarios.
- Strong Battery Performance: Each earbud features a 40 mAh battery, providing 4 hours of continuous operation. The 350 mAh charging case extends usage, offering up to 120 hours of standby time.
- Ergonomic Design: Designed to conform to the human ear shape for a compact and comfortable fit, ensuring no discomfort during prolonged use.
- Noise Reduction: High-precision noise reduction for clear audio quality.

Image: Overview of the B11 Translator Earbuds' functional generalization, highlighting features like simultaneous interpretation, premium sound quality, 144 online translation languages, and long-lasting battery.

Image: Illustration of the high-precision noise reduction feature, showing how it enhances audio quality.

Image: Demonstrates the ergonomic design of the earbuds, ensuring a comfortable and secure fit for most users.
Setup
Charging the Earbuds and Case
Before first use, fully charge the earbuds and the charging case. The charging case has a built-in 350 mAh lithium-ion battery, and each earbud has a 40 mAh lithium-ion battery.
- Place both earbuds into the charging case.
- Connect the charging case to a power source using a compatible USB cable (not specified, assume standard USB-C or Micro-USB).
- The digital display on the charging case will indicate the charging status. Ensure both earbuds and the case are fully charged before use.
Pairing with Your Device
The earbuds use Bluetooth V5.3 for stable and efficient connection.
- Ensure the earbuds are charged and taken out of the charging case. They should automatically enter pairing mode.
- On your smartphone or tablet, go to Bluetooth settings and turn Bluetooth on.
- Search for available devices. The earbuds should appear as "TWS B11" or similar.
- Select the earbuds to pair. Once connected, you will hear an audio prompt.
Installing the Companion Application
To utilize the translation features, you will need to download and install the dedicated companion application on your smartphone. Refer to the QR code in the product packaging or search for "TWS B11 Translator" (or similar) in your device's app store (Google Play Store for Android, Apple App Store for iOS).
- Download and install the application.
- Open the application and follow the on-screen instructions to connect your earbuds to the app. This usually involves confirming the Bluetooth connection.
Operating Modes
The TWS B11 earbuds offer four distinct translation modes to cater to various communication needs:
1. Touch Mode
Ideal for close conversations, such as with acquaintances or friends. Two people each wear an earbud, and translation occurs in real-time by touching the earbud.
- Each person wears one earbud.
- Tap the earbud to speak, and the translation will be heard by the other person.

Image: The app interface displaying the four translation modes, with a focus on Touch Mode.
2. Speaker Mode (External Mode)
Suitable for situations where one person wears the earbuds and the other person speaks into the smartphone. This mode is convenient for interacting with strangers or in situations where sharing earbuds is not practical.
- One person wears the earbuds.
- The other person speaks into the smartphone's microphone.
- The translation is played through the earbuds for the wearer and through the phone's speaker for the other person.

Image: Depiction of Speaker Mode in use, where one person wears the earbuds and another speaks into a phone.
3. Free Talk Mode
Designed for natural, flowing conversations. Both participants wear an earbud, and the system automatically translates speech in real-time without the need for manual input, allowing for hands-free communication.
- Both participants wear an earbud.
- Speak naturally; the earbuds will automatically detect and translate speech.

Image: Free Talk Mode in action, enabling natural, hands-free conversation between two people.
4. Offline Mode
Allows translation without an internet connection. This mode supports real-time offline voice translation for specific languages, making it ideal for travel or areas with limited connectivity.
- Ensure the required offline language packs are downloaded via the companion app when connected to the internet.
- Activate Offline Mode in the app.
- Speak as usual; translation will occur without network access.
- Supported offline languages include Chinese, English, Japanese, Korean, Russian, German, French, and Spanish.

Image: Demonstrates the Offline Mode, allowing translation without an internet connection for supported languages.
Specifications
| Feature | Detail |
|---|---|
| Model Number | Cuifati7b3fxose1g-12 |
| Brand | Cuifati |
| Earbud Battery Type | Built-in 40 mAh Lithium-ion Battery x 2 |
| Charging Case Battery Type | Built-in 350 mAh Lithium-ion Battery |
| Bluetooth Version | V5.3 |
| Transmission Distance | Up to 32.8 feet (10 meters) |
| Supported Languages | 74 Languages, 70 Accents (Total 144 variations) |
| Translation Accuracy | Up to 97% |
| Translation Latency | 0.5 seconds |
| Earbud Continuous Use Time | 4 hours (fully charged) |
| Standby Time | 120 hours |
| Color | WHITE |
| Material | ABS |

Image: A comprehensive list of the 74 languages and 70 accents supported by the earbuds.

Image: Visual representation of the earbuds' high translation accuracy and low latency.
Maintenance
Proper maintenance ensures the longevity and optimal performance of your TWS B11 earbuds.
- Cleaning: Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth. Do not use abrasive cleaners, alcohol, or chemical solvents.
- Ear Tips: Remove ear tips periodically and clean them with a damp cloth. Ensure they are completely dry before reattaching.
- Charging Contacts: Gently wipe the charging contacts on both the earbuds and inside the case to ensure a good connection.
- Storage: When not in use, store the earbuds in their charging case to protect them from dust and damage. Store in a cool, dry place away from direct sunlight and extreme temperatures.
- Water Exposure: The earbuds are not waterproof. Avoid exposure to water, sweat, or high humidity.
Troubleshooting
If you encounter issues with your TWS B11 earbuds, refer to the following common solutions:
| Problem | Possible Cause / Solution |
|---|---|
| Earbuds not pairing |
|
| No sound from earbuds |
|
| Translation not working |
|
| Poor audio quality / Noise |
|
| Earbuds not charging |
|
Warranty and Support
Manufacturer's Warranty
The Cuifati TWS B11 Language Translation Earbuds come with a 1 Year Warranty Against Manufacturer Defects. This warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or normal wear and tear.
Please retain your proof of purchase for warranty claims.
Customer Support
For technical assistance, warranty claims, or any other inquiries regarding your Cuifati TWS B11 earbuds, please contact Cuifati customer support. Refer to the product packaging or the official Cuifati website for contact information.
When contacting support, please have your product model number (Cuifati7b3fxose1g-12) and purchase details ready.





