Acer OHR633 Wireless Bluetooth Headphones User Manual

1. Introduction

1.1 Item Name

Over-ear Headphones

1.2 Product Description

This headset is an audio product that supports wireless connectivity, compatible with Android and iOS smartphones, tablets, and other portable electronic devices. By eliminating the constraints of wired connections, it offers users enhanced convenience and unrestricted mobility, catering to a wide range of application scenarios. It features HiFi stereo sound quality, Adaptive Active Noise Cancellation (ANC) with -25dB noise reduction, and a built-in high-definition microphone for clear calls. The foldable and adjustable design ensures comfort and portability.

2. Product List (What's in the Box)

The package includes:

• Head mounted headphones x1
• USB charging cable x1
• Audio cable x1
• Instruction manual x1

3. Product Overview

3.1 Product Structure Diagram

3.2 Button Functions

1. ANC Button: Activates/deactivates Active Noise Cancellation.
2. Volume Up / Next Track Button: Increases volume or skips to the next track.
3. Volume Down / Previous Track Button: Decreases volume or goes to the previous track.
4. Power Button: Powers the headphones on/off, plays/pauses music, answers/ends calls.
5. Type-C Charging Port: Used for charging the headphones.

3.3 Wearing Tips

Gently place the headband over your head and position the ear cups to fully cover your ears. Adjust the headband's length using the telescopic feature and the angle of the ear cups for a comfortable fit. The design is glasses-friendly and features breathable, non-stuffy earcups for extended comfort.

4. Product Specifications

5. Setup

5.1 Initial Charging

Before using the headphones for the first time, please fully charge them. Connect the provided USB charging cable to the Type-C charging port on the headphones and to a compatible 5V/1A charger. Ensure the charger has passed safety certification from a regular manufacturer. The power delivered by the charger must be between min 5 Watts and max 10 Watts to achieve maximum charging speed. Charging takes approximately 2 hours.

5.2 Power On/Off

• Power On: Press and hold the Power Button (4) for 2 seconds. The headphones will automatically power on.
• Power Off: Press and hold the Power Button (4) for 2 seconds. The headphones will power off.

5.3 Wireless Connection

On your Android or iOS device, navigate to the Wireless settings page. Search for available devices and select "OHR633" to connect. The headphones support Wireless version V5.4.

6. Operating Instructions

6.1 Music Playback Control

• Play/Pause: Short-press the Power Button (4).
• Previous Track: Single tap the Volume Down / Previous Track Button (3).
• Next Track: Single tap the Volume Up / Next Track Button (2).
• Volume Up: Long-press the Volume Up / Next Track Button (2).
• Volume Down: Long-press the Volume Down / Previous Track Button (3).

6.2 Call Management

• Answer/End a Call: Short-press the Power Button (4).
• Reject a Call: Press and hold the Power Button (4) for 2 seconds.

6.3 Noise Cancellation (ANC)

• Activate/Deactivate ANC: Short-press the ANC Button (1).

7. Maintenance

7.1 Cleaning

Before cleaning and maintaining this product, stop using it, turn off any applications, and disconnect all connections or cables. Do not use abrasive cleaners to clean this product.

7.2 Storage

If you do not plan to use this product for a long time, please store it in a dry environment. Charge the headset at least once a month to prolong its life and avoid extreme temperature and dust. The foldable design allows for easy and compact storage.

8. Troubleshooting

• Headphones won't power on: Ensure the headphones are fully charged. Press and hold the power button for 2 seconds.
• Cannot connect via Bluetooth: Make sure Bluetooth is enabled on your device and the headphones are in pairing mode. Check if the headphones are already connected to another device. Try restarting both the headphones and your device.
• No sound or low volume: Check the volume levels on both the headphones and your connected device. Ensure the headphones are properly paired.
• Poor sound quality: Ensure the headphones are within the 10-meter communication range of your device. Check for any obstructions between the headphones and the device.
• ANC not working: Ensure the ANC button is pressed to activate the noise cancellation feature.
• Charging issues: Verify that the charging cable and adapter are working correctly and meet the 5V/1A specification. Ensure the Type-C cable is securely connected.

9. User Tips

• Optimize Battery Life: For prolonged battery life, avoid completely draining the battery frequently. Charge regularly, especially if not used for extended periods.
• Comfort First: Take advantage of the adjustable headband and flexible hinges to find the most comfortable fit for long listening sessions. The soft, breathable earcups are designed for extended wear.
• Seamless Switching: Utilize the dual-mode functionality (wireless and AUX audio cable) for versatile connectivity, switching to wired mode when battery is low or for devices without Bluetooth.
• Effective Noise Cancellation: Experiment with the ANC feature in different environments (commuting, office, outdoor) to experience its full potential in reducing ambient noise.

10. Compliance Information

10.1 FCC Warning

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Caution: Any changes or modifications not expressly approved by the part responsible for compliance could void the user's authority to operate the equipment.

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 0cm between the radiator and your body.

10.2 CE Declaration of Conformity

Hereby, Acer Gadget Inc. declares compliance with the essential requirements and other relevant provisions of the Radio Equipment Directive 2014/53/EU and RoHS Directive 2011/65/EU.

10.3 Disposal of Waste Equipment by Users in Private Households in the European Union

This symbol on the product or its packaging indicates that this product must not be disposed of with other household waste. Instead, it is your responsibility to dispose of your waste equipment by handing it over to a designated collection point for the recycling of waste electrical and electronic equipment. The separate collection and recycling of your waste equipment at the time of disposal will help to conserve natural resources and ensure that it is recycled in a manner that protects human health and the environment. For more information about where you can drop off your waste equipment for recycling, please contact your local city office, your household waste disposal service or the store where you purchased the product.

11. Safety Guidelines

• The product is not a toy; children under 12 must use it under adult supervision.
• Use a 5V/1A safety-certified charger.
• Charge in a safe environment. Disconnect the charging cable once fully charged to prevent battery damage from long-term charging.
• The product has a built-in non-removable rechargeable battery. Repeated charging and discharging will decrease battery performance over time.
• If the product has not been used for a long time, charge it at least once a month.
• If skin discomfort occurs, stop wearing and consult a doctor.
• Adjust headphone volume to an appropriate level to avoid hearing damage from prolonged loud volume.
• When using the product in situations requiring concentration (driving, cycling, walking near roads/construction sites/railways), ensure you can hear surrounding sounds, including alarms and warning signals. Remove headphones or adjust volume as needed.
• Follow local regulations when driving.
• This product contains magnetic materials; keep away from electrical appliances with strong magnetic or electric fields (e.g., microwave ovens, refrigerators).
• Recommended operating temperature: 0°C~45°C. Battery performance is limited below +5°C.
• Do not use this product where wireless equipment is prohibited, as it may interfere with other electronic equipment or cause dangers.
• Before approaching medical or industrial equipment or boarding a plane, ask staff if use is permitted.
• Dispose of waste electronic products, parts, and batteries properly according to local laws and regulations. Do not dispose of with household waste.
• The charger's power output must be between 5W and 10W for maximum charging speed.
• Use the company's standard USB cable or designated charging cable.
• Ensure headphones have sufficient power for normal operation.
• Permanent hearing loss may occur if earphones or headphones are used at high volume for prolonged periods of time.
• Batteries may explode if not handled properly.
• Do not disassemble or dispose of batteries in fire.
• Do not short external contacts, crush, puncture or otherwise tamper with batteries.

12. Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the official Acer website or contact your local Acer customer service center. Keep your purchase receipt as proof of purchase for warranty claims.

A user manual in PDF format is available for download: Download User Manual (PDF)

13. Product Video