1. Introduction
Thank you for choosing OneOdio Noise Cancelling Bluetooth Headphones. This manual provides essential information for setting up, operating, and maintaining your headphones to ensure optimal performance and longevity. Please read it carefully before use.
2. Package Contents
Ensure all items are present in the package:
- OneOdio Noise Cancelling Bluetooth Headphones
- Protective Case
- USB Charging Cable
- 3.5mm Audio Cable
- Airline Adapter
- User Manual (this document)
3. Setup
3.1 Initial Charging
Before first use, fully charge your headphones. Connect the USB charging cable to the charging port on the headphones and to a USB power source (e.g., computer USB port or wall adapter). The LED indicator will show charging status and turn off when fully charged.
3.2 Powering On/Off
- Power On: Press and hold the Power button for approximately 3 seconds until the LED indicator lights up.
- Power Off: Press and hold the Power button for approximately 3 seconds until the LED indicator turns off.
3.3 Bluetooth Pairing
To pair your headphones with a Bluetooth-enabled device:
- Ensure the headphones are powered off.
- Press and hold the Power button for 5-7 seconds until the LED indicator flashes blue and red alternately, indicating pairing mode.
- Enable Bluetooth on your device (smartphone, tablet, computer).
- Search for available Bluetooth devices and select "OneOdio A9" from the list.
- Once connected, the LED indicator will flash blue slowly.
Note: The headphones will automatically attempt to reconnect to the last paired device when powered on.
4. Operating Instructions
4.1 Basic Controls
| Button/Action | Function |
|---|---|
| Power Button (Short Press) | Play/Pause music, Answer/End call |
| Power Button (Long Press) | Power On/Off, Enter Pairing Mode |
| Volume Up (+) | Increase Volume |
| Volume Down (-) | Decrease Volume |
| Next Track (Long press +) | Skip to next song |
| Previous Track (Long press -) | Go to previous song |
| ANC Switch | Toggle Active Noise Cancellation On/Off |
4.2 Active Noise Cancellation (ANC)
The OneOdio A9-BK headphones feature Hybrid Active Noise Cancellation, utilizing 4 microphones to effectively reduce ambient noise by up to 30-33dB.
- To activate ANC, slide the ANC switch on the left earcup to the 'ON' position.
- To deactivate ANC, slide the ANC switch to the 'OFF' position.
4.3 Wired Mode
You can use the headphones in wired mode even if the battery is depleted. Simply connect the provided 3.5mm audio cable to the headphone's audio jack and to your audio source. Bluetooth and ANC functions will be disabled in wired mode.
5. Maintenance
5.1 Cleaning
Wipe the headphones with a soft, dry cloth. Do not use abrasive cleaners or solvents. Avoid getting moisture into any openings.
5.2 Storage
When not in use, store the headphones in their protective case to prevent damage. Avoid storing in extreme temperatures or high humidity.
5.3 Battery Care
To prolong battery life, avoid fully discharging the headphones frequently. Charge them regularly, even if not used for extended periods.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Headphones won't power on | Low battery | Charge the headphones fully. |
| Cannot pair via Bluetooth | Headphones not in pairing mode; Device Bluetooth off; Interference | Ensure headphones are in pairing mode (flashing blue/red). Turn device Bluetooth off/on. Move closer to device. |
| No sound | Volume too low; Not connected; Wrong audio output selected | Increase volume on headphones and device. Reconnect Bluetooth. Check device's audio output settings. |
| ANC not working effectively | ANC switch off; High-frequency noise | Ensure ANC switch is ON. ANC is most effective against low-frequency, constant noise. |
7. Specifications
- Model Name: OneOdio A9-BK
- Connectivity Technology: Wireless (Bluetooth)
- Noise Control: Active Noise Cancellation (Hybrid, up to 33dB)
- Impedance: 32 Ohm
- Form Factor: Over Ear
- Dimensions: 19 x 19.5 x 4.5 cm
- Weight: 260 Grams
- Included Components: Protective Case
8. Warranty and Support
OneOdio products are designed for durability and performance. For warranty information or technical support, please refer to the contact details provided on the official OneOdio website or your purchase documentation. Keep your proof of purchase for warranty claims.
