Introduction
Thank you for choosing the Acer OHR516 Active Noise Cancelling Headphones. These headphones are designed to provide a superior audio experience with advanced features for comfort, sound quality, and connectivity. This manual will guide you through the setup, operation, and maintenance of your new headphones.
What's in the Box
- 1x Acer OHR516 Wireless Headphones
- 1x USB-C Charging Cable
- 1x 3.5mm Audio Cable
- 1x User Manual (this document)

Image: Acer OHR516 headphones, USB-C charging cable, 3.5mm audio cable, and user manual.
Product Features
- Comfortable & Pressure-Free ANC: Advanced Active Noise Cancellation (ANC) reduces ambient noise while minimizing ear pressure for extended comfort.
- Immersive Sound with Deep Bass: Custom-tuned 40mm large-aperture drivers deliver rich bass, clear mids, and crisp highs.
- Dual Device Connection & One-Click Switch: Connect to two Bluetooth devices simultaneously and switch between them easily.
- Exceptional 60-Hour Battery Life: Up to 60 hours of playtime with ANC off (40 hours with ANC on) from a 2-hour USB-C charge.
- Low Latency Mode: Double-click the ANC button to activate game mode for reduced audio latency and real-time synchronization.
- All-Day Comfort & Portable Design: Lightweight frame, plush memory-protein foam ear cushions, and foldable, rotating ear cups for portability.
- Clear Calls in Any Environment: Built-in microphones with Environmental Noise Cancellation (ENC) reduce background noise for clear voice pickup.
Controls and Ports
Familiarize yourself with the controls and ports on your Acer OHR516 headphones:
- ANC Button: Activates/deactivates Active Noise Cancellation. Double-click for Low Latency Mode.
- USB-C Charging Port: For charging the headphones.
- 3.5mm Audio Jack: For wired connection using the included audio cable.
- Volume Down / Next Track: Press to decrease volume, hold to skip to the next track.
- Power On/Off / Play/Pause / Answer/End Call / Reject Call: Multi-function button for various operations.
- Volume Up / Previous Track: Press to increase volume, hold to go to the previous track.

Image: Detailed diagram showing the location and function of buttons and ports on the Acer OHR516 headphones.
Setup
1. Initial Charge
Before first use, fully charge your headphones using the provided USB-C cable. Connect the USB-C end to the headphone's charging port and the USB-A end to a compatible power source (e.g., computer USB port, wall adapter). The LED indicator will show charging status and turn off when fully charged.
2. Power On/Off
To power on, press and hold the Power button until the LED indicator lights up. To power off, press and hold the Power button until the LED indicator turns off.
3. Bluetooth Pairing
- Ensure the headphones are powered off.
- Press and hold the Power button for approximately 5 seconds until the LED indicator flashes blue and red, indicating pairing mode.
- On your device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
- Select "OHR516" from the list of devices.
- Once connected, the LED indicator will turn solid blue.
4. Dual Device Connection
The OHR516 supports connecting to two Bluetooth devices simultaneously. After pairing with the first device, follow the pairing steps for the second device. The headphones will automatically switch between devices based on audio playback.
Operating Instructions
1. Active Noise Cancellation (ANC)
Press the ANC button once to activate or deactivate Active Noise Cancellation. The LED indicator will light up when ANC is active.

Image: Visual representation of how Active Noise Cancellation reduces ambient noise.
2. Low Latency Mode
Double-click the ANC button to switch to Low Latency Mode, ideal for gaming or video playback to minimize audio delay.

Image: A person wearing Acer OHR516 headphones while gaming, illustrating the low-latency mode.
3. Music Playback
- Press the Power button once to Play/Pause music.
- Press the Volume Up/Down buttons to adjust volume.
- Hold the Volume Up button for the next track.
- Hold the Volume Down button for the previous track.
4. Call Management
- Press the Power button once to Answer/End a call.
- Press and hold the Power button to Reject a call.
5. Wired Mode
Connect the 3.5mm audio cable to the headphone's audio jack and your device's audio output. This mode works even if the headphones are out of battery, though ANC and other electronic features will not be available.
Charging
To charge your Acer OHR516 headphones, use the provided USB-C cable. A full charge takes approximately 2 hours and provides up to 60 hours of playback (ANC off) or 40 hours (ANC on).

Image: Acer OHR516 headphones connected via USB-C cable for charging.
Maintenance
- Clean the headphones with a soft, dry cloth.
- Avoid exposing the headphones to extreme temperatures, humidity, or liquids.
- Store the headphones in a cool, dry place when not in use. The foldable design allows for compact storage.
Troubleshooting
| Problem | Solution |
|---|---|
| Headphones won't power on | Ensure the headphones are charged. Connect to a power source and try again. |
| Unable to pair via Bluetooth | Make sure headphones are in pairing mode (flashing blue/red LED). Ensure Bluetooth is enabled on your device and it's within range. Try restarting both devices. |
| No sound or low volume | Check headphone and device volume levels. Ensure headphones are properly connected/paired. If using wired mode, ensure the 3.5mm cable is fully inserted. |
| ANC not working effectively | Ensure ANC is activated by pressing the ANC button. Check that the earcups form a good seal around your ears. |
| Poor call quality (ENC) | Ensure microphones are not obstructed. Try moving to a quieter environment if background noise is excessive. |
Specifications
- Brand: Acer
- Model Number: OHR516
- Ear Placement: Over Ear
- Impedance: 32 Ohms
- Item Weight: 229 Grams
- Noise Control: Active Noise Cancellation, Environmental Noise Cancellation
- Frequency Response: 20 KHz
- Sensitivity: 112 dB
- Audio Driver Size: 40 Millimeters
- Enclosure Material: Acrylonitrile Butadiene Styrene (ABS), Polycarbonate (PC)
- Connectivity Technology: Hybrid (Bluetooth & Wired)
- Wireless Technology: Bluetooth
- Bluetooth Range: 10 Meters
- Bluetooth Version: 5.4
- Control Type: Push Button
- Battery Charge Time: 2.5 Hours
- Battery Average Life: 60 Hours (ANC off) / 40 Hours (ANC on)
- Additional Features: Fast Charging, Foldable, Microphone Included, Multipoint Pairing
Warranty and Support
The Acer OHR516 headphones come with a 1 Year Manufacturer Warranty. For warranty claims or technical support, please contact Acer customer service or visit their official website. Keep your proof of purchase for warranty validation.





