1. Introduction
The ESTG Z9 Translator Device is an intelligent, real-time translation machine designed to facilitate communication across language barriers. It supports a wide range of online and offline translation modes, including voice, photo, and text, making it an ideal companion for travel, business, and language learning.

Key features include:
- 139 Online Voice Translation Languages
- 75 Online Photo Translation Languages
- 17 Offline Voice Translation Languages
- 45 Offline Photo Translation Languages
- Real-time Two-Way Translation
- Smart Recording and Text Input Translation
- Phone Translation Integration
- Built-in ChatGPT and Language Learning functions
2. Initial Setup
2.1 Charging the Device
Before first use, fully charge your Z9 Translator Device. Connect the device to a power source using the provided Type-C cable. A full charge typically takes approximately 90 minutes. The battery indicator on the screen will show charging status.

2.2 Power On/Off
- To Power On: Press and hold the power button (usually on the side) until the screen lights up.
- To Power Off: Press and hold the power button, then select "Power Off" on the screen.
2.3 Network Connection
For online translation features, connect your device to a Wi-Fi network:
- Go to "Settings" on the device.
- Select "Wi-Fi" and turn it on.
- Choose your desired network and enter the password if prompted.
2.4 Downloading Offline Language Packs
To use offline translation, you need to download language packs:
- On the home screen, tap the "Offline package management" icon.
- Browse the list of available languages.
- Select the languages you wish to download and follow the on-screen prompts. Ensure you have sufficient storage space.

3. Operating Instructions
3.1 Online Voice Translation
The Z9 supports 139 online voice translation languages. To use:
- Tap the "Realtime translation" icon on the home screen.
- Select the source and target languages.
- Press and hold the appropriate microphone button (usually indicated by colors or symbols) and speak clearly. Release the button to hear the translation.

3.2 Offline Voice Translation
For situations without internet access, the device offers 17 offline voice translation languages. Ensure you have downloaded the necessary language packs (refer to Section 2.4).
- Tap the "Offline translation" icon.
- Select your downloaded source and target languages.
- Proceed with voice input as described for online translation.
3.3 Photo Translation
Translate text from images using the built-in camera. This feature supports 75 online and 45 offline photo translation languages.
- Tap the "Photo Translation" icon (often represented by a camera).
- Position the device camera over the text you wish to translate (e.g., books, signs, labels, digital screens).
- Tap the capture button. The device will process the image and display the translated text.

3.4 Phone Translation
Connect your Z9 device to your smartphone or computer for seamless message and communication translation.
- Tap the "Phone translation" icon.
- Follow the on-screen instructions to pair with your external device (e.g., via Bluetooth or a dedicated app).
- Once connected, you can translate text messages or other communications appearing on your paired device.

3.5 Smart Recording
The "Smart recording" feature allows you to record audio and then translate it into text or another language. Tap the icon and follow the prompts to start recording and processing.
3.6 ChatGPT and Language Learning
The device includes dedicated applications for ChatGPT and Language Learning. Tap their respective icons on the home screen to access these features. For ChatGPT, an internet connection is typically required.
4. Maintenance
4.1 Cleaning
Wipe the device with a soft, dry, lint-free cloth. Do not use liquid cleaners or aerosols directly on the device. Avoid getting moisture into any openings.
4.2 Battery Care
- Avoid exposing the device to extreme temperatures.
- Do not fully deplete the battery frequently; charge it when the battery level is low.
- If storing the device for an extended period, charge it to about 50% before storage.
5. Troubleshooting
| Problem | Possible Cause / Solution |
|---|---|
| Device does not power on. | Battery might be depleted. Connect to charger and try again. |
| Online translation not working. | Check Wi-Fi connection. Ensure the device is connected to a stable internet source. |
| Offline translation not available for a language. | Ensure the specific language pack has been downloaded via "Offline package management". Not all online languages are available offline. |
| Poor translation accuracy. | Speak clearly and at a moderate pace. Ensure minimal background noise. For photo translation, ensure good lighting and clear text. |
6. Specifications
| Feature | Detail |
|---|---|
| Model Number | Z9 |
| Brand Name | ESTG |
| Display Screen | Yes |
| Battery Capacity | 2000mAh |
| Continuous Translation Time | Up to 6 hours |
| Standby Time | Up to 10 days |
| Online Voice Translation | 139 Languages |
| Offline Voice Translation | 17 Languages (e.g., Afrikaans, Albanian, Arabic, Bengali, Bulgarian, Catalan) |
| Online Photo Translation | 75 Languages |
| Offline Photo Translation | 45 Languages |
| Input/Output Languages (Examples) | Spanish, Chinese, Arabic, Russian, French, Korean, Portuguese, Japanese, Italian, English |
| Certification | CE |
| Type | Voice Translation |
| Style | Portable |
7. User Tips
- ChatGPT Access: The ChatGPT feature is integrated into the device. Basic access is typically included, but always check for any specific subscription requirements within the application itself if advanced features are desired.
- Offline Language Management: To maximize the utility of offline translation, regularly check the "Offline package management" section to ensure you have the latest language packs downloaded for your most frequently used languages.
- Clear Pronunciation: For best voice translation results, speak clearly and directly into the microphone. Avoid speaking too quickly or with heavy accents that might hinder recognition.
- Lighting for Photo Translation: When using photo translation, ensure the text is well-lit and in focus for optimal accuracy.
8. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided at the time of purchase or contact the manufacturer's customer service. Keep your proof of purchase for warranty claims.





