Introduction
Thank you for choosing the A90 Pro TWS Earbuds. These true wireless stereo earphones feature advanced Bluetooth 5.3 technology, Active Noise Cancellation (ANC), Environmental Noise Cancellation (ENC), and a smart LED digital display for an immersive audio experience. This manual will guide you through the setup, operation, maintenance, and troubleshooting of your new earbuds.
Video: A90 Pro TWS Earbuds product showcase.
Package Contents
Please check the package for the following items:
- A90 Pro TWS Earbuds (Left and Right)
- Charging Case with LED Digital Display
- USB Type-C Charging Cable
- User Manual
- Multiple sizes of ear tips (for optimal fit)
Image: A90 Pro TWS Earbuds and included accessories.
Product Overview
The A90 Pro TWS Earbuds are designed for high-quality audio and convenient use. Key features include:
- LED Power Display: Shows battery levels for the charging case and individual earbuds.
- Bluetooth V5.3: For stable and efficient wireless connectivity.
- Smart Touch Control: Intuitive touch gestures for music playback, calls, and voice assistance.
- Auto Connect: Earbuds automatically pair with your device after initial setup.
- Crystal Clear Call: Enhanced call quality with Smart AI Call Noise Cancellation (ANC+ENC).
- Comfortable Design: Ergonomically designed for extended wear.
Image: Overview of smart technology and operation.
Setup
1. Charging the Earbuds and Case
Before first use, fully charge the earbuds and charging case.
- Place the earbuds into the charging case. Ensure they are correctly seated.
- Connect the USB Type-C charging cable to the charging port on the case and the other end to a DC 5V power source (e.g., a USB wall adapter or computer USB port).
- The LED digital display on the charging case will show the battery percentage of the case and individual earbud charging status.
- Charging time for the case is approximately 1.5 hours. Earbuds charge automatically when placed in the case.
Image: Charging the A90 Pro TWS Earbuds case via Type-C port.
Image: LED Power Digital Screen displaying battery status.
2. Pairing with a Device
- First-time Pairing:
- Open the charging case. The earbuds will automatically enter pairing mode.
- On your smartphone or tablet, go to Bluetooth settings and search for available devices.
- Select "A90 Pro" from the list. Once connected, you will hear a confirmation sound.
- Automatic Reconnection:
- After the initial pairing, the earbuds will automatically connect to the last paired device when taken out of the charging case, provided Bluetooth is enabled on your device.
Operation
Touch Controls
The A90 Pro TWS Earbuds feature smart touch controls on each earbud. Refer to the diagram below for specific functions:
Image: Smart Touch Operation Guide.
| Action | Left Earbud | Right Earbud |
|---|---|---|
| 1 Click | Play/Pause, Answer/Hang Up Call | Play/Pause, Answer/Hang Up Call |
| 2 Clicks | Last Song | Next Song |
| 3 Clicks | Volume Down | Volume Up |
| Long Press 2s | Voice Assistance, Reject Call | Voice Assistance, Reject Call |
Noise Cancellation (ANC + ENC)
The A90 Pro earbuds feature Active Noise Cancellation (ANC) for immersive listening and Environmental Noise Cancellation (ENC) for clear calls. These technologies work together to reduce ambient noise, ensuring your audio is crisp and your voice is clear during calls.
Image: Smart AI Call Noise Cancellation in action.
Maintenance
Cleaning
- Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth.
- Do not use harsh chemicals, cleaning solvents, or strong detergents.
- Clean the charging contacts on both the earbuds and the case to ensure proper charging.
Storage
- When not in use, store the earbuds in their charging case to protect them and keep them charged.
- Avoid storing the device in extreme temperatures (hot or cold) or in dusty/humid environments.
Water Resistance
The A90 Pro TWS Earbuds have an IPX-4 waterproof rating, meaning they are resistant to splashing water from any direction. They are suitable for exercise but should not be submerged in water or exposed to heavy rain.
Troubleshooting
Common Issues and Solutions
- Earbuds not pairing with each other: Place both earbuds back into the charging case, close the lid, wait a few seconds, then open the lid again. They should re-sync automatically.
- Earbuds not connecting to device:
- Ensure Bluetooth is enabled on your device.
- Forget/delete "A90 Pro" from your device's Bluetooth list and try pairing again.
- Ensure earbuds are charged.
- No sound from one earbud:
- Try placing both earbuds back in the case and taking them out again.
- Check if the earbud is charged.
- Clean the charging contacts.
- Charging case not charging:
- Ensure the Type-C cable is securely connected to both the case and the power source.
- Try a different charging cable or power adapter.
- Poor sound quality:
- Ensure the earbuds are properly seated in your ears. Try different ear tip sizes.
- Clean any debris from the earbud speakers.
- Ensure your device is within the 10-15 meter working distance.
Specifications
| Feature | Detail |
|---|---|
| Model | A90 Pro TWS Game |
| Bluetooth Version | V5.3+EDR+BR |
| Bluetooth Chipset | Jieli AC7006 ANC+ENC |
| Working Distance | 10-15 meters |
| Earbud Battery Capacity | 33 mAh (each) |
| Charging Case Battery Capacity | 320 mAh |
| Speaker Impedance | φ13 MM 32Ω |
| Microphone Sensitivity | -42Db |
| Standby Time | Approx. 140 days |
| Music Playtime | Approx. 6 hours per charge (21 hours total with charging case) |
| Talk Time | Approx. 4 hours |
| Charging Time (Case) | Approx. 1.5 hours |
| Input Current | 5V 1A |
| Charging Method | Magnetic charging (earbuds), Type-C (case) |
| Operation Mode | Touch Control |
| Waterproof Standard | IPX-4 |
| Material | ABS |
| Wireless Delay Time | 41-50 ms |
| Applicable Products | Smartphones, tablet computers |
Image: Detailed product specifications and dimensions.
Image: Immense Sound Experience with 13mm dynamic drivers.
User Tips
- Optimal Fit: Experiment with the different ear tip sizes provided to find the most comfortable and secure fit. A good seal is crucial for optimal sound quality and noise cancellation.
- Battery Management: Always place the earbuds back in the charging case when not in use to ensure they are ready for your next session. The digital display helps monitor battery levels.
- Voice Assistant: Utilize the long-press function to quickly access your device's voice assistant for hands-free control.
- Regular Cleaning: Keep the earbuds and charging contacts clean to prevent charging or connection issues.
Warranty and Support
The A90 Pro TWS Earbuds come with a 1-year guarantee from the date of purchase. This warranty covers manufacturing defects. For any issues, technical support, or warranty claims, please contact the seller directly through your purchase platform.