1. Introduction
The ACEFAST AceClip Pro Open-Ear Earbuds are designed to provide a comfortable and immersive audio experience while allowing awareness of your surroundings. This manual provides instructions for setup, operation, maintenance, and troubleshooting to ensure optimal use of your device.

Image: The ACEFAST AceClip Pro Open-Ear Earbuds in their charging case.
2. What's in the Box
Verify that all components are present in the package:
- ACECLIP Pro Open-ear Earbuds (x2)
- ACECLIP Pro Charging Case (x1)
- USB-C Charging Cable (x1)
- User Manual (x1)

Image: All items included in the ACEFAST AceClip Pro retail box.
3. Setup and Pairing
Follow these steps to set up and pair your ACEFAST AceClip Pro earbuds with your device:
- Charge the Earbuds: Before first use, place both earbuds into the charging case and connect the case to a power source using the provided USB-C cable. Ensure the earbuds and case are fully charged.
- Power On: Open the charging case. The earbuds will automatically power on and enter pairing mode.
- Bluetooth Pairing: On your smartphone or other Bluetooth-enabled device, go to the Bluetooth settings. Search for "ACEFAST AceClip Pro" in the list of available devices and select it to connect.
- Confirmation: Once connected, you will hear an audio prompt from the earbuds, and the device will show "Connected" in your Bluetooth settings.
- App Customization: For advanced settings and customization, download the official ACEFAST app from your device's app store.
Video: An official overview of the ACEFAST AceClip Pro wireless earbuds, demonstrating key features and design.
4. Operating Instructions
4.1. Wearing the Earbuds
The AceClip Pro earbuds feature a clip-on design for open-ear listening. Ensure the earbud is positioned correctly for optimal sound and comfort. The side with the ACEFAST logo should face your ear canal, and the curved part rests behind your ear.

Image: Visual guide for correct earbud placement to ensure proper fit and sound quality.
4.2. Full-Surface Click Control
The earbuds feature full-surface click operation for easy control. Tap anywhere on the earbud to perform various functions:
- Play/Pause: Single click.
- Next Track: Double click (right earbud).
- Previous Track: Double click (left earbud).
- Answer/End Call: Single click during an incoming call.
- Reject Call: Long press during an incoming call.
- Activate Voice Assistant: Triple click.
Note: Specific controls can be customized via the ACEFAST app.

Image: A user interacting with the full-surface click control area on the earbud.
4.3. Outdoor Boost Mode
Activate Outdoor Boost Mode for enhanced audio clarity in noisy outdoor environments. This mode utilizes 3x larger drivers to ensure your music remains clear and full, even with wind and traffic noise.

Image: A visual representation of the Outdoor Boost Mode's effectiveness in noisy environments.
4.4. AI Noise Cancelling Calls
The earbuds feature AI Noise Cancelling for calls, which helps to reduce environmental noise and ensure clear voice transmission during phone conversations.
4.5. Sound Effects and Customization
Utilize the ACEFAST app to select from various sound effects (e.g., Original Sound, Human Voice, Bass) or create a custom equalizer profile to tailor your listening experience.

Image: The ACEFAST app interface displaying sound effect presets and customization options.
4.6. Game Mode
Activate Game Mode through the ACEFAST app for reduced audio latency, ensuring synchronized voice and action during gaming sessions.
Video: An official demonstration of the ACEFAST AceClip Pro Open-Ear Earbuds, highlighting various features including game mode and sound quality.
5. Charging and Battery Life
The AceClip Pro earbuds offer extended playtime and fast charging capabilities:
- Playtime: Up to 28 hours of total playtime with the charging case. Each earbud provides approximately 8 hours of continuous use on a single charge.
- Fast Charging: A 10-minute charge provides approximately 90 minutes of playback.
- Charging Indicator: The charging case features an LED indicator to show battery status.
6. Maintenance
To ensure the longevity and performance of your earbuds:
- Cleaning: Gently wipe the earbuds and charging case with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials.
- Water Resistance: The earbuds are rated IP55 for water and dust resistance, making them suitable for workouts and light rain. Do not submerge them in water.
- Storage: Store the earbuds in their charging case when not in use to protect them and keep them charged.
7. Troubleshooting
If you encounter issues with your AceClip Pro earbuds, refer to the following common solutions:
- No Sound/Connection Issues:
- Ensure earbuds are charged and powered on.
- Check Bluetooth settings on your device to confirm connection.
- Try unpairing and re-pairing the earbuds.
- Restart your audio source device.
- Low Volume:
- Adjust volume on both your device and the earbuds.
- Ensure earbuds are correctly positioned in your ears.
- Activate Outdoor Boost Mode if in a noisy environment.
- Earbuds Not Charging:
- Ensure the charging cable is securely connected to both the case and power source.
- Check if the charging case has power.
- Clean the charging contacts on both the earbuds and the case.
- Unresponsive Controls:
- Ensure your fingers are clean and dry when using touch controls.
- Try resetting the earbuds (refer to the ACEFAST app or manufacturer's website for specific reset instructions).
For further assistance, please contact ACEFAST customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | ACEFAST |
| Model Name | Aceclip Pro |
| Ear Placement | Open Ear |
| Connectivity Technology | Wireless (Bluetooth) |
| Bluetooth Version | Bluetooth 5.4 |
| Bluetooth Range | 10 meters |
| Audio Driver Type | Dynamic Driver |
| Audio Driver Size | 20 x 8 mm |
| Frequency Range | 20 Hz - 20,000 Hz |
| Impedance | 16 ohm |
| Sensitivity | 90 cycles |
| Battery Life (Earbuds) | Up to 8 hours |
| Total Battery Life (with Case) | Up to 28 hours |
| Water Resistance Rating | IP55 |
| Noise Control | Environmental Noise Cancellation (for calls) |
| Control Type | Click Control (Touch) |
| Material | ABS, High-polymer Eco-friendly Plastic |
9. Warranty and Support
Your ACEFAST AceClip Pro Open-Ear Earbuds are covered by a 2-Year Manufacturer Warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
For warranty claims, technical support, or any inquiries, please contact ACEFAST customer service through their official website or the contact information provided in your product packaging.
Please retain your proof of purchase for warranty validation.
