Introduction
Thank you for choosing the Acer OHR618 Wireless Bluetooth Headphones. These in-ear headphones are designed to provide a superior audio experience with Active Noise Cancellation (ANC), high-definition calls, Dolby Surround Sound, and extended battery life. They are suitable for various activities including music listening, gaming, sports, and fitness use. This manual will guide you through the setup, operation, and maintenance of your new headphones.

Package Contents
- Acer OHR618 Wireless Earbuds (Left and Right)
- Charging Case
- USB Type-C Charging Cable
- User Manual
Specifications
| Feature | Specification |
|---|---|
| Brand Name | Acer |
| Model | OHR618 |
| Material | Plastic |
| Style | TWS In-ear Headphones |
| Communication | Wireless (Bluetooth) |
| Wireless Type | Bluetooth 5.4 |
| Maximum Wireless Range | <10m (accessible condition) |
| Active Noise-Cancellation (ANC) | Yes |
| ENC Call Noise Reduction | Yes |
| Deepest Noise Reduction Depth | -56dB |
| Average Noise Reduction Depth | -37dB |
| Noise Reduction Frequency Range | 20-20kHz |
| With Microphone | Yes |
| Volume Control | Yes |
| Control Button | Yes |
| Vocalism Principle | Dynamic |
| Number Of Drivers | 2 |
| Vocal Unit | Φ13mm/0.512inch |
| Impedance Range | up to 32 Ω |
| Earphone Battery Capacity | 30mAh (each earbud) |
| Charging Case Battery Capacity | 350mAh |
| Single Listening Time | 5-6 hours |
| Charging Time | ≈1 hour (for charging case) |
| Weight of Earphones | 4.0g *2 (0.14oz *2) |
| Charging Method | Charging case (Type-C) |
| Waterproof | No |
| Certifications | CE, FCC, RoHS |


Setup
1. Charging the Device
- Place both earbuds into the charging case.
- Connect the provided USB Type-C charging cable to the charging port on the case and a power source.
- The indicator light on the charging case will illuminate to show charging status. A full charge for the case takes approximately 1 hour.
- Ensure the earbuds are fully charged before first use for optimal battery life.
2. Initial Pairing
- Open the lid of the charging case. The earbuds will automatically power on and enter pairing mode.
- On your smartphone or Bluetooth-enabled device, go to the Bluetooth settings.
- Search for "Acer OHR618" in the list of available devices and select it to connect.
- Once connected, you will hear an audible confirmation, and the indicator light on the earbuds may change.
3. Wearing the Earbuds
- Identify the 'L' (left) and 'R' (right) markings on the earbuds.
- Gently insert each earbud into the corresponding ear canal.
- Adjust the earbud until it fits snugly and comfortably. A proper seal is crucial for effective noise cancellation and sound quality.

Operating Instructions
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. They will automatically disconnect and power off.
2. Touch Controls
The Acer OHR618 headphones feature convenient touch controls on the outer surface of each earbud. Refer to the diagram below for specific functions:

- Music Mode:
- Pause/Play: Hold Right earbud for 2 seconds.
- Volume -/+: Single click Left/Right earbud.
- Next/Previous Track: Double click Left/Right earbud.
- Call Mode:
- Answer Call: Single click Right earbud.
- Hang Up Call: Single click Left earbud.
- Reject Call: Hold Right or Left earbud for 2 seconds.
- Voice Assistant:
- Activate: Hold Left earbud for 2 seconds.
3. Active Noise Cancellation (ANC)
The OHR618 features advanced ANC and ENC (Environmental Noise Cancellation) technology to provide an immersive listening experience and clear calls in noisy environments. The dual noise reduction algorithm isolates external sounds such as subway noise, vehicle honking, vocal noise, and low-frequency wind noise.


4. Audio Quality
Enjoy surging sound with high-quality bass, panoramic surround, and a polymer diaphragm for a rich audio experience. The headphones are professionally tuned to reproduce a classic original listening experience across the entire frequency band.

Maintenance
1. Cleaning
- Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth.
- Do not use abrasive cleaners, solvents, or aerosol sprays.
- Gently remove any earwax or debris from the earbud tips and speaker mesh using a small, soft brush or cotton swab.
2. Storage
- When not in use, always store the earbuds in their charging case to protect them and ensure they remain charged.
- Store the device in a cool, dry place, away from extreme temperatures and direct sunlight.
3. Water Resistance
The Acer OHR618 headphones are NOT waterproof. Avoid exposing them to water, rain, or excessive moisture to prevent damage.
Troubleshooting
1. Earbuds Not Pairing/Connecting
- Ensure both earbuds are fully charged.
- Make sure Bluetooth is enabled on your device.
- Place the earbuds back in the charging case, close the lid, wait a few seconds, then open it again to re-enter pairing mode.
- If the issue persists, try forgetting "Acer OHR618" from your device's Bluetooth list and re-pairing.
- Ensure the earbuds are within the maximum wireless range (<10m) of your device.
2. No Sound or Low Volume
- Check the volume levels on both your connected device and the earbuds.
- Ensure the earbuds are properly seated in your ears to create a good seal.
- Clean any debris from the earbud speaker mesh.
- Confirm the earbuds are connected to the correct device.
3. Poor Call Quality
- Ensure the microphone area on the earbuds is not obstructed.
- Move to a quieter environment if ENC is not fully effective against extreme noise.
- Check your device's network connection if using calls over data.
4. Active Noise Cancellation Not Effective
- Ensure the earbuds are properly and securely fitted in your ears to create an airtight seal.
- Check that ANC is activated (if there's a toggle, though not explicitly mentioned in provided data, it's a common feature).
User Tips
- Optimal Fit: Experiment with different ear tip sizes (if included, though not explicitly listed in package contents, it's standard) to find the best fit for your ears. A good seal significantly enhances both sound quality and noise cancellation performance.
- Regular Charging: For uninterrupted use, make it a habit to place your earbuds back in their charging case whenever you're not using them. This ensures they are always ready for your next session.
- Firmware Updates: Check the official Acer website or companion app (if available) periodically for any firmware updates. Updates can improve performance, add features, or fix bugs.
Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the official Acer website or contact Acer customer service directly. Keep your proof of purchase for any warranty claims.
Product Video
Watch this video for a visual overview of the Acer OHR618 Wireless Bluetooth Headphones, showcasing their design and features.





