Introduction
Thank you for choosing the ACEFAST H3 Active Noise Cancelling Wireless Bluetooth Headphones. These headphones are designed to provide a superior audio experience with advanced features such as 30dB Active Noise Cancellation (ANC), HiFi-level sound quality, and a comfortable, foldable design. This manual will guide you through the setup, operation, and maintenance of your new headphones to ensure optimal performance and longevity.
Package Contents
Please check the package contents carefully. If any items are missing or damaged, please contact your retailer.
- ACEFAST H3 Wireless Bluetooth Headset
- USB-C Charging Cable
- Storage Bag
- User Manual
Specifications
| Feature | Specification |
|---|---|
| Model | H3 |
| Bluetooth Version | 5.3 |
| Battery Capacity | 500mAh |
| Charging Time | Approx. 3 hours |
| Music Playback Time (ANC OFF) | Up to 80 hours |
| Music Playback Time (ANC ON) | Up to 65 hours |
| Talk Time (ANC OFF) | Up to 60 hours |
| Talk Time (ANC ON) | Up to 50 hours |
| Noise Reduction Depth | -30dB |
| Driver Diameter | 40mm |
| Impedance | 32Ω |
| Sensitivity | 98dB ± 3dB |
| Frequency Response Range | 20Hz - 20kHz |
| Maximum Wireless Range | <10m |
| Weight | 233g |
| Dimensions (L*W*H) | 180mm * 80mm * 190mm |
| Waterproof Rating | IPX4 |
| Charging Method | USB-C Cable |
| Material | ABS+PC+Aluminum alloy, Protein leather + memory foam earcups |
| Features | Active Noise Cancellation, Built-in HD Microphone, Control Buttons |
Setup
1. Charging the Headphones
Before first use, fully charge your ACEFAST H3 headphones. Connect the provided USB-C charging cable to the USB-C port on the headphones and the other end to a compatible USB power source (e.g., wall adapter, computer USB port). The LED indicator will show the charging status. A full charge takes approximately 3 hours. A quick 10-minute charge can provide up to 2 hours of playback at 70% volume.
2. Powering On/Off
- Power On: Press and hold the Power/Multi-function button for a few seconds until the LED indicator lights up and you hear a power-on prompt.
- Power Off: Press and hold the Power/Multi-function button for a few seconds until the LED indicator turns off and you hear a power-off prompt.
3. Bluetooth Pairing
- Ensure the headphones are powered off.
- Press and hold the Power/Multi-function button for approximately 5-7 seconds until the LED indicator flashes red and blue alternately, indicating pairing mode.
- On your device (smartphone, tablet, computer), enable Bluetooth and search for available devices.
- Select "ACEFAST H3" from the list of found devices.
- Once connected, the LED indicator will turn solid blue or flash blue slowly, and you will hear a connection confirmation.
- If prompted for a password, enter "0000".
The headphones will automatically attempt to reconnect to the last paired device when powered on.
Operating Instructions
1. Music Playback
- Play/Pause: Short press the Power/Multi-function button.
- Next Track: Long press the Volume Up (+) button.
- Previous Track: Long press the Volume Down (-) button.
- Volume Control: The headphones do not feature onboard volume control. Please adjust the volume directly from your connected device.
2. Active Noise Cancellation (ANC)
The ACEFAST H3 headphones feature 30dB ANC technology to reduce ambient noise.
- Toggle ANC: Short press the ANC button to switch between ANC On, ANC Off, and potentially a Transparency/Ambient Sound mode (if available, indicated by audio prompt).
3. Phone Calls
The built-in HD microphone with anti-wind noise ensures clear communication.
- Answer/End Call: Short press the Power/Multi-function button.
- Reject Call: Long press the Power/Multi-function button.
- Voice Assistant: Double-press the Power/Multi-function button to activate your device's voice assistant (Siri, Google Assistant, etc.).
4. Wired Mode
You can use the headphones in wired mode by connecting a 3.5mm audio cable (not included) to the audio jack on the headphones and your audio source. In wired mode, Bluetooth and ANC functions may operate differently or be unavailable depending on the headphone's power status.
Maintenance
- Cleaning: Wipe the headphones with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Storage: When not in use, store the headphones in the provided storage bag to protect them from dust and scratches. The foldable design (Figure 4) makes them compact for travel.
- Water Resistance: The headphones have an IPX4 waterproof rating, meaning they are resistant to splashing water. Do not submerge them in water or expose them to heavy rain.
- Battery Care: To prolong battery life, avoid fully discharging the headphones frequently. Charge them regularly, even if not used for extended periods.
- Temperature: Avoid exposing the headphones to extreme temperatures (hot or cold) or high humidity.
Troubleshooting
| Problem | Possible Solution |
|---|---|
| Headphones won't power on. | Ensure the headphones are charged. Connect them to a power source using the USB-C cable. |
| Cannot pair with device. |
|
| No sound or low volume. |
|
| ANC not working effectively. |
|
| Poor call quality. |
|
User Tips
- For the best sound quality and ANC performance, ensure the earcups form a good seal around your ears. Adjust the headband for a comfortable yet snug fit.
- While the headphones offer long battery life, a quick 10-minute charge can provide significant playback time, which is useful for unexpected needs.
- Remember that volume control is managed directly from your connected device, as the headphones do not have this feature.
- The foldable design is great for portability; always use the included storage bag to protect your headphones when traveling.
Warranty and Support
ACEFAST products are designed and manufactured to the highest quality standards. In the unlikely event of a problem with your product, please contact the retailer where you purchased the product or ACEFAST customer support for assistance. Please retain your proof of purchase for warranty claims.
For further support, visit the official ACEFAST website or contact their customer service department.
