1. Introduction
The ESTG M12 Portable Smart Voice Translator is an advanced, multi-functional device designed to facilitate seamless communication across language barriers. Featuring real-time speech translation, offline translation capabilities, photo translation, and support for group chats, it is an ideal companion for business, travel, and learning. Its compact design and intuitive interface make it easy to use for all age groups.
2. Package Contents
Upon unboxing your M12 Smart Voice Translator, please ensure all items listed below are present:
- M12 Smart Voice Translator device
- USB Type-C Charging Cable (Length: 0.8 meters)
- User Manual (Guide to Use)
- Packaging Box

3. Product Overview
Familiarize yourself with the device's physical components:

- Type-C Charging Interface: Located at the top, used for charging the device.
- Power On/Off Button: Located on the right side, used to power the device on or off.
- Camera: Located on the back, used for photo translation.
- Volume + / Volume -: Located on the left side, used to adjust the audio volume.
- Translate Key A: Located on the left side, a dynamic tactile button for translation input.
- Translate Key B: Located on the right side, a dynamic tactile button for translation input.
- Speaker: Located at the bottom, for audio output.
- Display Screen: 4.02-inch high-definition IPS screen for displaying translations and interface.
4. Specifications
Detailed technical specifications of the M12 Smart Voice Translator:

| Category | Feature | Detail |
|---|---|---|
| CPU & OS | CPU Platform | Qualcomm MSM8X12 |
| Operating System | Android 5.1 | |
| Memory | RAM | 1GB |
| ROM | 8GB | |
| Connectivity | WIFI | 2.4G (802.11a/b/g/n) |
| Bluetooth | V2.1+EDR/V3.0+HS/V4.0 LE | |
| USB Port | Type-C | |
| OTG | Not supported | |
| Headphone Seat | Bluetooth earphones with actual configuration | |
| Display & Input | LCD | 4.02" 640*1136 / IPS |
| TP (Touch Panel) | G+F single touch, 3D appearance | |
| Proactive | Not supported | |
| Post Photography | 800M AF autofocus | |
| Audio | Audio Frequency | AW8736, KA class amplifier |
| Horn (Speaker) | High-quality 5-magnetic speaker, 2.5W multimedia surround sound speaker | |
| Mike (Microphone) | Silicon microphone, dual microphone noise reduction | |
| Power | Battery | Polymer 2200AMH |
| Working Time | 15 hours | |
| Physical | Main Shell | High strength zinc alloy CNC machining and forming |
| Decorative Shell | High strength PC injection molding | |
| Side Key | Power Key Aluminum Alloy CNC | |
| Key | Dynamic tactile buttons | |
| Translation Features | System Language | English, German, French, Polish, Spanish, Russian, Arabic, Thai, Korean, Japanese, Czech, Vietnamese, Simplified Chinese, Traditional Chinese |
| Online Translation | 137 languages | |
| Offline Translation | 22 languages (accurate in 18 countries, ordinary in 3 countries) | |
| Photo Translation | Online in 76 countries, offline in 40 countries | |
| Recording Translation | AI noise reduction intelligent recording, Synchronize 137 languages, Translate text export, insert into computer/recording translation file package | |
| Online Multi-person Translation | 500 people online simultaneously | |
| Tools & Storage | Favorites | Unlimited number of files |
| Other Tools | Voice translation, offline translation, photo translation, simultaneous interpretation, quick chat translation, remote translation, input translation, intelligent recording, reading bookmarking, ChatGPT, AI assistant, exchange rate conversion, unit conversion, offline package management, calculator, stopwatch | |
| Dimensions & Weight | Data Line | Type-C, Length 0.8 meters |
| Packing (Stand-alone) | 160mm*85mm*38mm / 253g |
5. Setup
5.1 Powering On/Off
- To Power On: Press and hold the Power On/Off button (located on the right side) until the screen lights up.
- To Power Off: Press and hold the Power On/Off button, then select "Power Off" from the on-screen options. A short press will put the device to sleep/wake it up.
5.2 Charging the Device
Connect the provided Type-C USB cable to the charging interface on the top of the device and plug the other end into a compatible USB power adapter (not included) or a computer USB port. The battery indicator on the screen will show charging status.

5.3 Network Connection
The M12 translator supports multiple networking methods for optimal functionality:
- Wi-Fi: Connect to a Wi-Fi network for online translation features. Go to Settings > Wi-Fi and select your desired network.
- Bluetooth: Connect Bluetooth headphones for private listening during translation. Go to Settings > Bluetooth and pair your device.

6. Operating Instructions
The M12 translator offers various translation modes:
6.1 Real-time Speech Translation (Online)
For real-time, interactive voice translation:
- Ensure the device is connected to Wi-Fi.
- From the main screen, tap "Translate" or "Realtime translation".
- Select the source and target languages.
- Press and hold the corresponding Translate Key (A or B) for your language, speak clearly, and release the button. The device will translate and speak the output.

6.2 Offline Translation
Translate without an internet connection:
- From the main screen, tap "Offline translate".
- Download desired language packs in advance (requires Wi-Fi).
- Select the source and target languages from the downloaded packs.
- Press and hold the Translate Key, speak, and release.
The device supports offline translation for 22 languages, allowing you to communicate even in areas without network access.

6.3 Photo Translation
Translate text from images:
- From the main screen, tap "Photo translate".
- Point the camera at the text you wish to translate.
- Adjust the frame to capture the text clearly.
- Tap the capture button. The device will recognize the text and provide a translation.
Supports online photo translation in 76 languages and offline photo translation in 40 languages.

6.4 Remote Translation
Connect with others for remote translation:
- From the main screen, tap "Remote translation" or "Phone translation".
- Scan the provided QR code on the screen with your mobile phone to join the remote translation session.
- You can use various communication software (e.g., Chrome, PayPal, WeChat) to scan and join.

6.5 Group Chat Translation
Facilitate communication in multi-person settings:
- The device supports simultaneous online group chat and translation for up to 500 people.
- Access this feature through the "Conference" or "Quick Chat" option on the main screen.
- Follow the on-screen prompts to create or join a group and begin translating conversations.

6.6 Recording and AI Noise Reduction
The M12 translator features intelligent recording capabilities:
- Equipped with a high-frequency 5-magnetic speaker and a 2.5W BOX speaker for surround sound multimedia quality.
- AI intelligent recording with dual microphone noise reduction ensures accurate voice input and recognition, even in noisy environments.
- Recordings can be translated into 137 languages, exported as text, and transferred to a computer.


6.7 Other Tools
The M12 translator includes additional useful functions:
- ChatGPT & AI Assistant: For intelligent queries and assistance.
- Exchange Rate Conversion: Convert currencies on the go.
- Unit Conversion: Convert various units of measurement.
- Offline Package Management: Manage downloaded language packs.
- Calculator & Stopwatch: Basic utility tools.
- Reading Bookmarking: Save important translations or texts.
7. Maintenance
To ensure the longevity and optimal performance of your M12 Smart Voice Translator, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the device. Avoid using liquid cleaners or aerosols directly on the screen or body.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: Avoid fully discharging the battery frequently. Charge the device regularly, even if not in use for extended periods, to maintain battery health.
- Avoid Drops and Impacts: The device is made with high-strength materials, but severe impacts can cause damage. Handle with care.
- Software Updates: Periodically check for and install software updates to ensure the best performance and access to new features.
8. Troubleshooting
If you encounter issues with your M12 Smart Voice Translator, refer to the following common problems and solutions:
- Device not turning on:
- Ensure the battery is charged. Connect the device to a charger for at least 30 minutes.
- Try pressing and holding the Power On/Off button for 10-15 seconds to force a restart.
- Translation not working / inaccurate:
- Check Wi-Fi connection for online translation.
- Ensure correct source and target languages are selected.
- Speak clearly and at a moderate pace.
- For offline translation, verify that the necessary language packs are downloaded.
- Check microphone and speaker for obstructions.
- Screen unresponsive:
- Restart the device.
- Ensure the screen is clean and dry.
- Poor audio quality:
- Check volume settings.
- Ensure the speaker is not covered.
- If using Bluetooth headphones, check their connection and volume.
- Cannot connect to Wi-Fi:
- Ensure Wi-Fi is enabled on the device.
- Verify the Wi-Fi password is correct.
- Try restarting your Wi-Fi router.
If the problem persists, please contact customer support.
9. Warranty and Support
The ESTG M12 Portable Smart Voice Translator comes with a standard manufacturer's warranty. Please refer to the warranty card included in your package for specific terms and conditions, including warranty period and coverage.
For technical support, service, or warranty claims, please contact the seller or the ESTG customer service department through the contact information provided with your purchase or on the official ESTG website.
Manufacturer: Made in Shenzhen, China
Certifications: CE





