GREYOLK OBT-039
GREYOLK OBT-039 AI Language Translation Earbuds Instruction Manual
Model: OBT-039 | Brand: GREYOLK
Introduction
Welcome to the GREYOLK OBT-039 AI Language Translation Earbuds. These earbuds are designed to facilitate seamless communication across language barriers, supporting real-time translation for 164 languages and accents. They also function as standard Bluetooth 5.3 headphones for music and calls, offering comfort and advanced features for travel, business, and learning. Please read this manual carefully to ensure proper use and to maximize your experience with the device.
What's in the Box

The GREYOLK OBT-039 package includes:
- GREYOLK Earphones (x1 pair)
- Charging Case (x1)
- USB-C Cable (x1)
- Portable Bag (x1)
- Anti-fall Rope (x1)
- Instruction Manual (x1)
Video: Unboxing and Components Overview. This video demonstrates the unboxing of the GREYOLK OBT-039 earbuds, showcasing the earbuds, charging case, and included accessories like the USB-C cable, portable bag, and anti-fall rope. It also briefly displays the instruction manual.
Product Overview
The GREYOLK OBT-039 earbuds are engineered for versatility and ease of use. They feature an open-ear conduction design for comfort and situational awareness, advanced Bluetooth 5.3 technology for stable connections, and intuitive touch controls.

Open-Ear Comfort: The earbuds feature an open-ear design, allowing you to listen to audio while remaining aware of your surroundings. This design is friendly to ear canals, comfortable for all-day wear, and IP68 waterproof.

Bluetooth 5.3 Technology: Equipped with Bluetooth 5.3, these earbuds provide ultra-fast, stable connections with stronger anti-interference, lower power consumption, and reduced signal delay. They feature a 20mm x 11.5mm racetrack diaphragm for enhanced audio.

Real-Time Translation: The earbuds support 164 languages (74 languages, 70 accents) for real-time translation, breaking language barriers for international travel, business meetings, and learning. Translation is instant and accurate.
Setup
1. Software Download
To activate real-time translation features, download the companion application.
- Scan the QR code provided in the manual or on the product packaging to download and install the "TransKit" app.
- Alternatively, search for "TransKit" on major app stores (compatible with Android and iOS devices) and download the application.

Image: App Download QR Code. This image shows the instruction manual with a QR code, which can be scanned to download the TransKit application for your earbuds.
2. Connect and Pair
After installing the app, connect your earbuds via Bluetooth:
- Open the Bluetooth settings on your phone.
- Search for nearby Bluetooth devices and select "XG99" (or similar model name) to complete the connection.
- Start the "TransKit" app, and it will automatically connect to the device.

Image: Bluetooth Pairing. This image illustrates the Bluetooth pairing process on a smartphone, showing how to connect the earbuds to your device.
3. Authorization and Activation
To fully activate the translation features:
- After connecting the device, open the "My" page within the TransKit app.
- Click to bind the device. You can either enter the authorization code manually or scan the authorization QR code provided in the manual.

Image: App Authorization. This image displays the authorization steps within the TransKit app, showing how to bind your device using either a code or a QR scan.
Operating Modes
1. AI Dialogue Mode
In AI Dialogue Mode, you can speak or enter text to ask questions to the AI. The system provides instant feedback and communication, quickly answering questions and offering professional advice and solutions to improve user efficiency.

Image: AI Dialogue Mode Interface. This image shows the user interface for the AI Dialogue Mode within the TransKit app, demonstrating how to interact with the AI for questions and answers.
2. Outer Mode (Translation Mode)
This mode allows you to speak or enter text to ask questions to the AI, providing instant feedback and communication. The AI offers professional advice and solutions. You can delete conversation history and protect user privacy by clicking the button in the upper right corner.

Image: Outer Mode Interface. This image displays the user interface for the Outer Mode in the TransKit app, detailing how to use it for translation and manage conversation history.
3. Free Speech Mode
Each person wears one headset. This mode is suitable for conversations with acquaintances. Select the dialogue language at the top, then click to speak to start the translation. The headset automatically recognizes both languages, breaks sentences, and translates in real-time, allowing users to communicate smoothly while working or in conversation.

Image: Free Speech Mode in Use. This image depicts two individuals using the earbuds for real-time translation in Free Speech Mode, facilitating natural conversation.
4. Touch Mode (Headset + Phone Mode)
One person wears the headphones, while the other uses their mobile phone. Double-click the headset touch area to activate the translation function. The headset will play the translated sound, and the phone user can speak into the phone for translation. This mode is suitable for conversations with strangers, such as ordering food in a restaurant or talking to a waiter.

Image: Headset + Phone Mode. This image illustrates the Touch Mode, where one person uses the earbuds and the other uses a phone for interactive translation.
5. Voice Note Mode
This mode allows you to record voice in real-time, automatically recognize the language, and convert it to text. It supports multi-language recognition and outputs text in real-time, making it useful for recording meeting content, personal assistants, or language learning. Note: This mode does not support recording for more than 30 minutes continuously.

Image: Voice Note Mode. This image shows the Voice Note Mode in action, where spoken words are converted into text on a smartphone screen, useful for transcribing lectures or meetings.
Comfort and Design
The OBT-039 earbuds are engineered for maximum comfort and a secure fit, allowing for extended wear without discomfort.

Adjustable Ear Hooks: The earbuds feature 4 adjustable ear hook positions to ensure a comfortable and secure fit for various ear shapes and sizes, optimizing sound delivery and comfort.

Lightweight Comfort: Each earbud weighs only 5.3g, providing a barely-there feel for all-day wear without pressure or fatigue.

Clean and Fresh: The open-ear design allows your ears to breathe freely, maintaining hygiene and comfort throughout the day.
Charging and Battery
The OBT-039 earbuds offer efficient charging and extended battery life for uninterrupted use.

Type-C Fast Charging: The charging case supports Type-C charging. A full charge takes approximately 1.5 hours, providing up to 8 hours of uninterrupted earbud use. The case itself holds multiple charges, extending total playtime.

Long-Lasting Listening: Enjoy up to 10 hours of playtime on a single charge. The charging case extends this to a total of 42 hours. A quick 10-minute charge provides 4 hours of playback.
Smart Touch Control
The earbuds feature highly sensitive touch sensors for easy control of various functions:
- Play/Pause: Tap 1 time (X1)
- Switch Song: Tap 2 times (X2)
- Adjust Volume: Tap 3 times (X3)
- Answer/End Call: Press and hold for 2 seconds (2S)
- Power ON/OFF: Press and hold for 5 seconds (5S)
- Voice Assistant (Siri): Press and hold for 1.5 seconds (1.5S)

Image: Touch Control Guide. This image provides a visual guide to the smart touch controls on the earbuds, detailing how to manage music, calls, and voice assistants.
Specifications
| Feature | Detail |
|---|---|
| Brand | GREYOLK |
| Model Number | OBT-039 |
| Item Weight | 5.3 ounces |
| Product Dimensions | 3 x 1.5 x 1 inches |
| Batteries | 1 Lithium Ion batteries required (included) |
| Color | Black/Gold |
| Number of Items | 1 |
| Size | Adjustable Size |
| Bluetooth Version | 5.3 |
| Translation Languages | 164 (74 languages, 70 accents) |
| Earbud Playtime (single charge) | Up to 10 hours |
| Total Playtime (with charging case) | Up to 42 hours |
| Charging Time | Approx. 1.5 hours |
Troubleshooting
If you encounter any issues with your GREYOLK OBT-039 earbuds, please refer to the following common solutions:
- Earbuds not pairing: Ensure both earbuds are fully charged and placed back in the charging case, then remove them to initiate pairing mode. Check your phone's Bluetooth settings to ensure the device is visible and selected.
- Translation not working: Verify that the "TransKit" app is installed, updated, and properly connected to the earbuds. Ensure you have selected the correct source and target languages within the app. Check your internet connection, as some translation features may require it.
- Poor audio quality: Ensure the earbuds are correctly positioned on your ears. Check for any obstructions or debris in the speaker area. Try disconnecting and reconnecting the Bluetooth connection.
- Battery draining quickly: Ensure the earbuds are fully charged before use. Close any unnecessary applications running in the background on your phone that might interfere with Bluetooth connectivity or app performance.
- Touch controls unresponsive: Ensure the touch surface is clean and dry. Try restarting the earbuds by placing them in the case and taking them out again.
Warranty and Support
GREYOLK products are manufactured with high-quality standards. For information regarding warranty coverage, technical support, or service inquiries, please refer to the warranty card included in your product packaging or visit the official GREYOLK website. Keep your purchase receipt as proof of purchase for warranty claims.
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