1. Introduction
The ZYHKJYL OWS AI Headphone K02 is a versatile wireless earbud designed for multi-language real-time translation, music playback, and phone calls. This manual provides essential information for setting up, operating, and maintaining your device to ensure optimal performance.

Image 1.1: ZYHKJYL OWS AI Headphone K02, showcasing its sleek design.
2. What's in the Box
Upon unboxing your ZYHKJYL OWS AI Headphone K02, please ensure all the following items are present:
- OWS AI Headphone K02 (Pair of earbuds)
- Charging Case
- Charging Cable
- User Manual (This document)
3. Product Overview
The K02 headphones offer advanced features for communication and audio enjoyment.
3.1 Key Features
- AI-Powered Real-Time Translation: Supports multiple languages for seamless communication in various scenarios.
- Multiple Translation Modes: Offers silent mode, earphone mode, speaker mode, and two-earphone mode via the AI Cool APP.
- High-Definition Sound Quality: Provides clear audio for both translations and music.
- Extended Battery Life: Designed for prolonged use, suitable for travel, work, and daily activities.
- Ergonomic Design: Lightweight and comfortable, compatible with iOS and Android devices.
3.2 Design and Compatibility

Image 3.1: The OWS AI Headphone supports iOS and Android devices, Bluetooth, WiFi, touch control, translation, music playback, and phone calls.

Image 3.2: The AI Smart Translation offers support for 144 languages with high accuracy and rapid response times.

Image 3.3: The earbuds are suitable for various application scenarios including business meetings, academic exchanges, international travel, and learning & training.

Image 3.4: The earbuds function as a three-in-one device for translation, music, and phone calls.

Image 3.5: Details of the AI technology upgrade, highlighting the lightweight, snug fit design and crystal-clear AAC sound quality with 5.4 wireless technology.
4. Setup Guide
Follow these steps to set up your ZYHKJYL OWS AI Headphone K02 and begin using its translation features.
4.1 App Download and Installation
- Download the "AI COOL" App from the Apple App Store or Google Play Store. You can also scan the QR code provided in the user manual for direct access.
4.2 Account Registration
- Open the "AI COOL" App and register your account. Follow the on-screen prompts to complete the registration process.
4.3 Device Binding
- In the app, click on "Binding Device".
- Ensure your mobile phone's Bluetooth is enabled and connected to the K02 earbuds.
- Scan the binding code from the operation manual or enter it manually into the app.
4.4 Video Guide: Connect AI Translation
Video 4.1: This video demonstrates the 6-step process to connect your AI K02 Earbuds for translation functionality, including app download, account registration, and device binding.

Image 4.1: Visual guide for connecting the AI translation feature, showing app download, registration, device binding, and mode selection.
5. Operating Instructions
Once your earbuds are set up, you can utilize their various functions.
5.1 Translation Modes
- After binding, choose the desired translation mode within the "AI COOL" App (e.g., Simultaneous Interpretation, AI Assistant, Meeting Assistant) and begin your translation.
5.2 Music Playback and Phone Calls
The earbuds also function as standard Bluetooth headphones for music and calls.
5.3 Touch Controls
The K02 earbuds feature intuitive touch controls for easy operation:

Image 5.1: Detailed guide for earbud touch controls, including single tap for play/pause, double tap for switching songs or adjusting volume, and long press for power or voice assistant.
- Single Tap (L/R): Play/Pause music, Answer/Hang up calls.
- Double Tap (L/R): Switch song (next/previous), Adjust volume (up/down).
- Press and Hold for 2 seconds (L/R): Power on/off (when not connected), Reject call, Activate Voice Assistant (Siri).
6. Battery Life and Charging
The K02 earbuds are designed for extended use with efficient charging.

Image 6.1: The earbuds offer up to 10 hours of continuous music playback, and with the 400mAh charging case, total battery life extends up to 72 hours. Charging time is approximately 1.5 hours.
- Earbud Playtime: Approximately 10 hours of continuous music listening on a full charge.
- Total Battery Life (with case): Up to 72 hours with the 400mAh charging compartment.
- Charging Time: Approximately 1.5 hours for a full charge.
To charge the earbuds, place them into the charging case. Connect the charging case to a power source using the provided USB cable.
7. Maintenance
Proper care will extend the lifespan of your earbuds.
- Clean the earbuds and charging case regularly with a soft, dry cloth.
- Avoid exposing the device to extreme temperatures, humidity, or corrosive liquids.
- Store the earbuds in their charging case when not in use to protect them and keep them charged.
- The earbuds are rated as waterproof; however, avoid prolonged submersion in water.
8. Troubleshooting
If you encounter issues with your K02 earbuds, refer to the following common solutions:
| Problem | Possible Solution |
|---|---|
| Earbuds not pairing/connecting | Ensure Bluetooth is enabled on your device. Make sure earbuds are charged. Try restarting both earbuds and your device. Re-attempt the device binding process in the AI COOL app. |
| No sound or poor sound quality | Check volume levels on both earbuds and your connected device. Ensure earbuds are properly seated in your ears. Disconnect and reconnect Bluetooth. |
| Translation not working | Verify that the AI COOL app is open and the correct translation mode is selected. Ensure a stable internet connection. Check microphone input settings on your phone and within the app. |
| Earbuds not charging | Ensure the charging cable is securely connected to both the case and a power source. Check if the charging case has power. Clean the charging contacts on both the earbuds and the case. |
| Touch controls unresponsive | Ensure your fingers are clean and dry. Try restarting the earbuds. |
9. Specifications
Key technical specifications for the ZYHKJYL OWS AI Headphone K02:
- Model Name: K02
- Brand: ZYHKJYL
- Connectivity Technology: Wireless (Bluetooth 5.0)
- Noise Control: Active Noise Cancellation
- Earpiece Shape: In Ear
- Control Method: Touch
- Material: Plastic
- Item Weight: 0.01 Kilograms (0.352 ounces)
- Water Resistance Level: Waterproof
- Batteries: 2 Nonstandard Battery batteries required (included)
- Included Components: Cable
- UPC: 769663457766
10. Warranty and Support
For warranty information or technical support, please refer to the documentation included with your purchase or contact ZYHKJYL customer service directly. Details for contacting support can typically be found on the manufacturer's official website or through your retailer.



