1. Introduction
Thank you for choosing the UGREEN HiTune H6 Pro Wireless Earbuds. These earbuds are designed to provide a superior audio experience with features like Adaptive Active Noise Cancellation (ANC), Hi-Res Audio with LDAC codec support, Spatial Audio, and crystal-clear calls powered by a 6-microphone AI algorithm. This manual will guide you through the setup, operation, and maintenance of your new earbuds.

2. Package Contents
Please check the package for the following items:
- UGREEN HiTune H6 Pro Earbuds
- Charging Case
- Charging Cable (USB-C)
- User Manual

3. Product Overview
The UGREEN HiTune H6 Pro earbuds feature an ergonomic, semi-open design for comfortable wear. They integrate advanced audio technologies for an immersive listening experience.


4. Setup
4.1 Charging the Earbuds and Case
Before first use, fully charge the earbuds and charging case.
- Connect the provided USB-C charging cable to the charging port on the case and a power source.
- The charging case input is 5V===500 mA.
- The charging case output to earbuds is 5V===200 mA.
- Charging the earbuds takes approximately 1.5 hours.
- Charging the case takes approximately 2 hours.
- A 10-minute fast charge provides approximately 120 minutes of music playback.

4.2 Pairing with a Device
The earbuds use Bluetooth 5.3 for a stable connection.
- Open the charging case. The earbuds will automatically enter pairing mode.
- On your device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
- Select "UGREEN HiTune H6 Pro" from the list to connect.
- Once connected, you will hear an audio prompt, and the earbuds will be ready for use.
4.3 UGREEN App Installation
For enhanced functionality and customization, download the UGREEN App from your device's app store.
- The app allows you to check battery levels, view connection status, select EQ sound effects, and customize various settings.

5. Operating Instructions
5.1 Power On/Off
- Power On: Open the charging case, and the earbuds will automatically power on.
- Power Off: Place the earbuds back into the charging case and close the lid.
5.2 Adaptive Active Noise Cancellation (ANC)
The earbuds feature Adaptive ANC with an AI algorithm that adjusts noise cancellation based on your environment. You can switch between different modes:
- Ultra Mode: For extremely noisy places.
- General Mode: For noisy environments.
- Gentle Mode: For quiet places.

5.3 Spatial Audio
Experience a three-dimensional surround immersive audio with Spatial Audio support.
5.4 In-ear Detection
The earbuds intelligently detect when they are worn. Music will play automatically when placed in your ears and pause when removed.

5.5 Call Function
The 6-microphone system with AI technology and a patented windproof structure ensures clear calls by effectively reducing wind noise and other ambient sounds.
5.6 EQ Sound Effects
Customize your listening experience with 8 different EQ sound effects available through the UGREEN App:
- Treble
- Popularity
- Jazz
- Classical
- Rock
- Classic
- Bass
- Electronic

5.7 Ultra-Low Latency Mode
For gaming, activate the 0.08s ultra-low latency mode via the UGREEN App for a more synchronized audio-visual experience.

5.8 Dual Connection
The earbuds support dual connection, allowing you to stay connected to two devices simultaneously (e.g., a smartphone and a laptop). You can instantly switch between audio sources without re-pairing.

5.9 Touch Controls
The earbuds feature touch controls for various functions, including volume control and track selection. Specific gestures can be customized via the UGREEN App.
6. Maintenance
6.1 Cleaning
Regularly clean your earbuds and charging case to ensure optimal performance and hygiene.
- Use a soft, dry, lint-free cloth to wipe the earbuds and charging case.
- Avoid using abrasive materials, solvents, or harsh chemicals.
- Gently clean the charging contacts on both the earbuds and the case with a dry cotton swab if necessary.
6.2 Water Resistance
The earbuds are rated IPX5 waterproof, meaning they are protected against low-pressure water jets from any direction. This makes them suitable for workouts and light rain, but they are not designed for submersion in water.
7. Troubleshooting
7.1 Common Issues and Solutions
- Earbuds not pairing: Ensure the earbuds are charged and in pairing mode. Turn off and on your device's Bluetooth, then try re-pairing.
- Only one earbud working: Place both earbuds back into the charging case, close the lid, wait a few seconds, then take them out again. This often resets the connection.
- Poor sound quality: Ensure the earbuds are clean and properly seated in your ears. Check the audio source and try adjusting EQ settings in the UGREEN App.
- Earbuds not charging: Verify the charging cable and power adapter are working. Clean the charging contacts on both the earbuds and the case.
- Compatibility: The earbuds are compatible with most Bluetooth-enabled devices, including iPhones, Android phones (like Motorola Edge 50 fusion), and MacBooks (like MacBook Air M1), supporting standard Bluetooth profiles.
8. Specifications
| Feature | Detail |
|---|---|
| Product Name | UGREEN HiTune H6 Pro Earbuds |
| Model | WS203 |
| Bluetooth Version | 5.3 |
| Frequency Band | 2400MHz-2483.5MHz |
| Max. RF Output Power | 4dBm |
| Transmission Distance | 10m/33ft Max (no blocking) |
| Bluetooth Profile | HFP/AVRCP/A2DP/BLE/SPP |
| Codecs | AAC/SBC/LDAC |
| Frequency Response | 20Hz-40kHz |
| Charging Port | USB-C |
| Charging Case Battery | Polymer Lithium-ion Battery |
| Earbud Capacity | 35mAh 3.85V (0.135Wh) |
| Charging Case Capacity | 400mAh 3.7V (1.48Wh) |
| Operating Time (Single Charge) | 6 hours |
| Operating Time (With Case) | 30 hours |
| Limited Charging Voltage | 5.25V |
| Material | Metal, PVC |
| Waterproof Rating | IPX5 |
| Certification | CE, FCC, BQB |


9. User Tips
- Optimal LDAC Performance: For the best Hi-Res audio experience with LDAC, use the earbuds in an interference-free environment to avoid high power consumption and potential lagging.
- App Customization: Don't forget to install the UGREEN App to unlock all features, including EQ adjustments and gaming mode.
- H6 Pro vs. LightBuds Pro: The H6 Pro offers In-Ear Detection and Bluetooth 5.3, while the LightBuds Pro (another model) features Bluetooth 6.0 and AI Wind Noise Reduction. Choose the model that best fits your specific needs.

10. Warranty and Support
The UGREEN HiTune H6 Pro Earbuds come with a 1-year warranty from the date of purchase.
For technical support, warranty claims, or further assistance, please contact UGREEN customer service through their official website or the contact information provided in your purchase documentation.





