Acer OHR551 TWS Wireless headset

Preface

Thank you for purchasing Acer products. For optimum operation, please read this manual carefully before using.

Model

OHR551

Item Name

TWS Wireless Earphones

Product List

• Earphones Headphones x2
• Charging case x1
• Type-C charging cable x1
• Instruction manual x1

Product Description

This TWS earphone is a wireless connectivity-enabled audio product, which is 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.

Product Specifications

• Material: ABS
• Product Weight: 31g
• Charging port: type-c
• Earphones Size: 21*17*17.5mm
• Charging case size: 62*35*31mm

Product structure diagram

1. Headphone Indicator Light

2. Function Key (Touch)

3. Charging compartment display

4. Magnetic Suction Groove

Tips: Gently place the earphones into the external ear canal and adjust the earphones after insertion. Adjust the wearing angle to a comfortable angle.

Bluetooth headphone parameters

• Bluetooth version: V5.4
• Connection method: Wireless Bluetooth audio receiver.
• Communication distance: Approximately 10 meters (in an open and unobstructed environment).
• Talk time: About 3 hours.
• Music playback time: About 4 hours (at medium volume).
• Frequency response range: 20Hz - 20KHz.
• Product material: Plastic.
• Wearing style: in-Ear.

Operation Instructions

1. Bluetooth connection: On Android/IOS platforms, search and perform operations in the Bluetooth settings page of your mobile phone.
2. Put the earphones into the charging case, and the earphones will turn off. The digital display on the case will light up. When the earphones are fully charged, the indicator light will go out.

Multifunction key

1. Power on: Keep press homekey 2 Sec
2. Power off: Keep press homekey 4 Sec
3. Playback: Short press the function key
4. Pause: Short press the function key
5. Answering/Hanging up calls: Short press homekey
6. Rejecting incoming calls: 2 sec press homekey
7. Previous/Next Track: Double-click R earbuds to next song, double click L earbuds for previous song
8. Voice Control: Long press homekey

Note: This product can be connected and used with any device equipped with Bluetooth functionality.

Safety guidelines

1. Before using this product for the first time, please fully charge it before using it.
2. The product is not a toy, and children under the age of 12 must be used under the supervision of an adult.
3. Please use a 5V/1A charger that has passed the safety certification of a regular manufacturer to avoid damage to the product caused by a fast charging charger that supports high voltage.
4. Please charge in a safe environment, when charging the charging case, please pull out the charging cable as soon as possible after the power is fully charged to avoid damage to the battery caused by long-term charging. The charging method of the charging case is the Type-C interface.
5. This product has a built-in non-removable rechargeable battery, and repeated charging and discharging of the earbuds will lead to a decrease in battery performance over time, which is normal for all rechargeable batteries.
6. This product comes with a healthy battery, if it has not been used for a long time, please charge it at least once a month.
7. If you feel skin discomfort when wearing it due to individual differences, please stop wearing it and consult a doctor.
8. When using this product with Bluetooth connection, please adjust the sound of the earphones to an appropriate volume to avoid hearing damage caused by long-term loud volume.
9. If you use this product while engaging in activities that require concentration, you should pay attention to your own safety and the safety of others, such as when driving or cycling, on roads, construction sites, railways, or walking. You should remove your headphones or adjust the volume to ensure that you can hear the sounds around you, including alarms and warnings signals.
10. Please follow the relevant regulations of your region or country and use this product as required when driving.
11. This product contains magnetic materials, please keep away from electrical appliances with strong magnetic or electric fields, such as microwave ovens, refrigerators, etc., when using or placing the product.
12. It is recommended to use this product in an environment with a temperature of -0°C~45°C. When the ambient temperature is below +5°C, battery performance is limited.
13. Do not use this product in places where it is expressly prohibited to use wireless equipment, otherwise it will interfere with other electronic equipment or cause other dangers.
14. Before approaching medical or industrial equipment or boarding a plane, please ask the local staff if they can use it.
15. Before cleaning and maintaining this product, stop using this product, turn off all applications, and disconnect all connections or cables to other equipment.
16. Please dispose of waste electronic products properly in accordance with local laws and regulations, and do not dispose of electrical and electronic equipment, parts, batteries and other household waste.
17. The power delivered by the charger must be between min 5 Watts required by the radio equipment, and max 10 Watts in order to achieve the maximum charging speed.

Warning

• Do not use abrasive cleaners to clean this product.
• Do not allow this product to be heated or close to a fire source, such as a cooking stove.
• Do not expose the product to direct sunlight for a long time.
• Do not discard this product in fire to avoid explosion.
• Do not attempt to disassemble this product to make any modifications, as it does not contain any maintenance components.
• Do not use this product in rain.
• If you do not plan to use this product for a long time, please store it in a dry environment and charge the headset less once to prolong its life and avoid extreme temperature and dust.
• 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.
• Follow local regulations when disposing of used batteries.
• The power delivered by the charger must be between min [5] Watts required by the radio equipment, and max [10] Watts in order to achieve the maximum charging speed.

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 to this device not explicitly approved by manufacturer could void your authority to operate this 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 minimum distance 0cm between the radiator and your body.