1. Introduction
Thank you for choosing the Acer OHR525 ANC Bluetooth Headphones. These headphones are designed to provide a superior audio experience with active noise cancellation, panoramic spatial audio, and a comfortable fit. This manual will guide you through the setup, operation, and maintenance of your new headphones.
2. Safety Instructions
Please read these safety instructions carefully before using the product.
- To avoid possible hearing problems, do not use headphones at high volume for extended periods.
- Keep the device dry. Keep away from precipitation, humidity, various liquids, and condensation.
- Do not use this product with wet hands.
- Do not use or store the device in dusty or dirty places.
- Do not store the device in high or low temperature conditions (this may damage the device).
- Do not drop, hit, or shake the device (this may cause damage).
3. Package Contents
Ensure all items are present in the package:
- 1 x Acer OHR525 ANC Bluetooth Headphones
- 1 x USB Type-C Charging Cable
- 1 x 3.5mm Audio Cable
- 1 x User Manual (this document)
4. Product Overview
Familiarize yourself with the headphone's controls and ports:
- Multifunctional Button: Used for Play/Pause, Answer/Hang up calls, Refuse calls, and Power On/Off.
- Volume Keys (+/-): Adjusts volume, also used for Previous/Next song.
- ANC Switch Key: Toggles Active Noise Cancellation (ANC) mode.
- Type-C Charging Port: For charging the headphones.
- 3.5mm Audio Jack: For wired connection using the included audio cable.
5. Specifications
| Feature | Specification |
|---|---|
| Brand | Acer |
| Model | OHR525 |
| Material | Metal, PVC |
| Category | Earphones & Headphones |
| Features | With microphone, Active Noise Cancelling |
| Function | HiFi Headphone, Sport |
| Active Noise-Cancellation | Yes (-48dB depth) |
| Volume Control | Yes |
| Control Button | Yes |
| Vocalism Principle | Dynamic |
| Wireless Type | Bluetooth |
| Communication | Wireless+Wired |
| Style | Wired headphone & headset |
| Certification | CE |
| Origin | Mainland China |
| Bluetooth Chip | JL 7006AC |
| Drive Unit | 40mm |
| Rated Power | 15mW |
| Sensitivity | 105±3dB |
| Frequency Response | 20Hz-20KHz |
| Charging Standard | DC5V/200mA |
| Charging Time | Approx. 1.5 - 2 hours |
| Impedance | 32Ω±15% AT DC |
| Connection Distance | ≥10M |
| Battery Capacity | 1000mAh |
| Listening Time | Up to 128 hours (ANC off), approx. 100 hours (ordinary music mode) |
| Bluetooth Version | 5.4 |
6. Setup
6.1. Bluetooth Pairing
- Power On: Long press the Multifunctional Button for 3 seconds to power on the headphones. The red and blue indicator lights will flash alternately, indicating pairing mode.
- Search for Device: On your mobile phone or other Bluetooth-enabled device, search for Bluetooth devices and select "OHR525" from the list.
- Connect: Click to connect. Once successfully connected, the indicator lights will turn off.
6.2. Wired Connection
To use the headphones in wired mode, simply connect one end of the 3.5mm audio cable to the headphone's 3.5mm audio jack and the other end to your audio source. The headphones will automatically switch to wired mode.
7. Operating Instructions
7.1. Power On/Off
- Power On: Long press the Multifunctional Button for 3 seconds.
- Power Off: Long press the Multifunctional Button for 3 seconds.
7.2. Music Control
- Play/Pause: Press the Multifunctional Button.
- Volume Up: Short press the "+" Volume Key.
- Volume Down: Short press the "-" Volume Key.
- Next Song: Long press the "+" Volume Key.
- Previous Song: Long press the "-" Volume Key.
7.3. Call Control
- Answer/Hang Up Call: Click the Multifunctional Button.
- Refuse Call: Long press the Multifunctional Button for 2 seconds.
7.4. Active Noise Cancellation (ANC)
- Toggle ANC: Click the ANC Switch Key. Green indicates ANC is active, black indicates ANC is off.
8. Charging
When the headphone battery is low, you will hear a low-power prompt. To charge:
- Insert one end of the provided USB Type-C charging cable into the Type-C charging port on the headphones.
- Insert the other end of the charging cable into a USB power source, such as a computer's USB port or a mobile phone charger (DC5V/200mA).
- The headphones will begin charging. The charging time is approximately 1.5 to 2 hours for a full charge.
9. Maintenance
- Cleaning: Use a soft, dry cloth to clean the headphones. Do not use harsh chemicals or abrasive materials.
- Storage: Store the headphones in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid Moisture: Keep the headphones away from water, humidity, and liquids to prevent damage.
- Handle with Care: Avoid dropping, hitting, or shaking the headphones.
10. Troubleshooting
If you encounter issues with your headphones, try the following steps:
- Check Connector Integrity: Ensure all cables (charging, audio) are securely connected.
- Check Connection with Equipment: Verify the Bluetooth connection on your device.
- Check Device Settings: Confirm your audio source's settings (e.g., volume, output device).
- Disconnect and Reconnect: Disconnect the headphones from your device and attempt to reconnect.
- Restart Device: Power off and then power on both your headphones and the connected device.
If the problem persists after these steps, please contact customer support.
11. User Tips
No specific user tips were available from the provided data.
12. Warranty and Support
12.1. Warranty Information
The Acer OHR525 headphones come with a warranty period of one year from the date of the sales invoice. Please retain your warranty certificate and valid invoice for any warranty claims.
The warranty may be invalidated under the following conditions:
- Inability to provide the warranty certificate or a valid invoice.
- The warranty card has been altered or does not match the product.
- Damage caused by improper user operation, such as liquid ingress or external force damage.
- Damage caused by environmental factors or force majeure.
- Unauthorized disassembly, repair, or repair by a non-designated third-party service station.
- Water damage or exposure to excessive moisture.
- Usage environment does not comply with national regulations (e.g., 3C certification).
- Situations that do not comply with relevant warranty regulations.
- Exceeding the valid warranty period.
- Damage caused by not using, maintaining, or storing the product according to the instructions.
12.2. After-Sales Service
For after-sales support, please contact the Acer customer service hotline:
- Hotline: 400 680 8821
- Service Hours: Monday to Sunday, 09:00 - 18:00
