WEIDA ALFF-1 Bluetooth Wireless Stereo Headset User Manual

WEIDA ALFF-1 Bluetooth Wireless Stereo Headset

Product model: ALFF-1

Thank you for choosing our Bluetooth Wireless Stereo Headset
Please read this guide carefully before use
Headworn Bluetooth noise reduction headphones

Function Introduction

Noise reduction on and off

Power on:
When the noise reduction function is turned off, press the noise reduction switch, and the noise reduction indicator light is on.

Power off:
When the noise reduction function is turned on, press the noise reduction switch, and the noise reduction indicator light is off.

Bluetooth power on and off

Power on:
In the shutdown state, long press the Bluetooth switch, and the red and blue indicator light flashes.

Power off:
When turned on, press and hold the Bluetooth switch, the red light flashes 3 times, and the indicator light goes out.

Pair mobile phones or other products
When to i shatterates he head the enter the pacing meto ds, an on the further wind other mobile phone or other products.
Search for the Bluetooth pair name “ALFF-1” and click Connect. The Bluetooth connection status indicator light turns into a blue light and flashes slowly, and there is a prompt tone for successful pairing The headphones remember the current device and are automatically paired when used for the second time.

Music’s play
Click the Bluetooth switch to play/pause music, press the “-” key, and the volume will be reduced by one grid.
key to increase the volume by one grid.
Long press the “-” key to switch to the previous song to play.
Long press the “+” key and switch to the next song to play.

Communicate by telephone
When calling, press the Bluetooth key to turn on the call.
At the end of the call, press the Bluetooth key to end the call.
When rejecting an incoming call, long press the Bluetooth key to turn on and reject the current incoming call.
When the last number is redial, double-click the Bluetooth key to call back the last call number of the mobile phone.

Charge
When the headphones indicate low battery, turn off the headphones and charge them.
Connect to the USB charging port and adapt to 5V power supply Connect the headphone charging socket When charging: the charging indicator light is red Charging completed: The charging indicator light is blue

Voice Assistant
Three clicks on Bluetooth key to activate voice assistant
In the shutdown state, one end of the sound source line is plugged into the headphone source jack, and the other end is plugged into the mobile phone. Or the audio output port of other products.

• In the wired state, the playback of music is controlled by the data output.

Description of the noise reduction function

• The noise reduction circuit actually senses external noise through the built-in microphone and sends an equal and opposite elimination signal to the machine.
• The noise reduction effect may not be obvious in a very quiet environment, or some noise may be heard.
• Depending on the way you wear the machine, the noise reduction effect may be different, or there may be a buzz (vibration). In this case, please remove the machine and wear it again.
• The noise reduction function is mainly effective for the noise in the low frequency band. The noise is reduced, but it cannot be completely eliminated.
• Mobile phones may cause interference and noise to the headset, if this happens, place the headset away from the mobile phone Do not cover the microphone of this machine with your hand. The noise reduction function may not work properly, or it may make a buzz (vibration).

Headset parameters

• Effective distance: ≥10 meters
• Operating Frequency: 2.400-2.480GHz
• charging port: Type-C
• charging voltage: DC 4.7V-5.2V/400mAh
• charging time: 4.5h
• bluetooth: 5.3
• headphone weight: 237g
• working time: about 19h(bluetooth+ANC)
• working time: about 45h( ANC mode)
• working time: about 25h(bluetooth mode)

About charging this headset

• During charging, you are not allowed to turn on this machine or use Bluetooth and noise reduction functions.
• If you don’t use this machine for a long time, the rechargeable battery may not be able to maintain enough power.
• Repeatedly After charging and discharging several times, the battery will be able to maintain an appropriate amount of power.
• If the machine is stored for a long time, the battery should be charged every six months to prevent excessive discharge.

Storage and maintenance

1. Store
   Please store in a cool and dry place.

2. Maintenance

   • a. The recommended operating temperature range is 0~35°C; overcooling, overheating or high temperature environment will reduce the battery.
     The service life affects the performance of the product.

   • b.Do not use it in thunderstorm weather.

   • C. After not using it for a long time, please charge it before use.

   • d. Please use a dry soft cloth to clean the headphones.

   • e.If there is water or sweat at the groove, just wipe it with a dry cloth, which will not affect the normal use.

   • f.Do not approach sharp and hard objects, it is easy to damage the product

FCC

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.

FCC warning:
Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

Note: 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.

The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

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