ACEFAST T8 Crystal 2 Color Bluetooth Earbuds User Guide
- May 15, 2024
- ACEFAST
Table of Contents
ACEFAST T8 Crystal 2 Color Bluetooth Earbuds User Guide
Friendly Reminder
For the first use, you need to take the earbud out of the charging case, tear
off the insulating sticker on the earbud, put the earbud into the charging
case to complete the activation.
Please charge the earbud first when the power is low.
Product information
Thank you for purchasing this product.
Please read this user manual carefully and keep it for future reference. If
you need any assistance, please contact our support team with your product
model number or Amazon order number.
Parameter / Product list
Product list
Instructions for use
The left and right earbuds are paired successfully by default when the product leaves the factory. Follow the steps below when connecting to the phone for the first time.
- Take out the earbuds to automatically turn on, wait for about 3 seconds, the earbuds will be automatically paired.
- Turn on the Bluetooth of the mobile phone, search for ACEFAST Crystal (2) T8, and click to connect.
After the successful pairing, you will hear a prompt tone and the phone shows that it is connected.
When you use it again, after the earbud is turned on and paired, it will automatically connect back to the connected mobile phone.
If you cannot connect to the mobile phone, please manually connect to the earbud from the Bluetooth menu of the mobile phone.
Prompt:
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When the earbud is connected to the device, in order to avoid the failure of the connection between the left and right earbuds, the earbud needs to be taken out of the charging case at the same time.
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You have 5 minutes to connect the earbuds and your device, otherwise the earbuds will automatically shut down. Put the earbuds back into the charging case to re-enter pairing mode.
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The left and right earbuds can be used separately.
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If the pairing fails for a long time, please put the earbuds back into the charging case for reconnection.
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If there is no sound after the left and right earbuds are connected, please put the earbuds back into the charging case for reconnection.
Operation mode
Power on / off:
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Power on: ① Take out the earbud, the earbud will automatically turn on. ② In the shutdown state, tap the touch area once. After the earbud is turned on, it enters the Bluetooth pairing state, and the LED light starts to flash.
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Power off: the earbud is automatically turned off when it is placed in the charging case.
Calls:
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Answering a call: during incoming call, double-tap the touch area.
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End the call: during a call, double-tap the touch area.
- Reject the call: during incoming call, press the touch area for 2 seconds.
Operation method
Operation method:
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Play music: double-tap the touch area or operate the player on the phone. (some mobile phones will automatically start the music player when connected to a Bluetooth stereo).
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Pause the music: double-tap the touch area when playing music or operate the player on the phone.
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Next song: when playing music, three taps on the touch area of the right earbud.
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Previous song: when playing music, three taps on the touch area of the left earbud.
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Volume +: tap the touch area of the right earbud, and there will be a tone at the maximum volume.
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Volume-: tap the touch area of the left earbud, and there will be a tone at the minimum volume.
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Wake up the voice assistant: touch the touch area of the left earbud for a 2s, and let go after hearing the tone to enter/exit the voice assistant.
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Enter/exit game mode: when using both earbuds, touch the touch area of the right earbud for 2s, enter/exit game mode accompanied by the tone.
Restore factory settings: long touch the left and right earbud touch areas for 5s at the same time, the white light flashes, the reset operation is successful.
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Listening to music in game mode may be stuck, please switch to music mode for a better experience
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Due to the characteristics of Bluetooth earbuds, electromagnetic wave interference in the area may cause connection interruptions or freezes. Based on the characteristics of wireless technology, when the device performs the display function and transmits the Bluetooth sound signal at the same time, there may be a “delay” in the audio signal and the video signal, that is, the sound is not synchronized with the picture.
Charging case display and lighting effect:
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The LR and four power cells indicate the power of the left and right earbuds. When the earbuds are placed in or removed from case, the digital display of the charging case flashes, and the breathing light turns off after three flashes.
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When charging the charging case, the digital display of the charging case lights up, the last cell of the battery will flash, and when the battery is fully charged, it will display OK.
I：0~25% II：26%~50% III：51%~75% IIII：76%~100%
Breathing light effect:
Charge:
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Charging the earbud: when the battery is low, the earbud will issue a voice reminder. Please put the earbud in the charging case to start charging.
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Charging in the charging case: when the battery of the charging case is low, please use the USB-C charging cable and connect it to the charging case interface to start charging.
Precautions for charging:
Use a charger with an output voltage of DC 5V, a USB port of a PC or a charger with a USB port output (must choose a charger that has been certified by a manufacturer).
Tips:
This product contains a built-in rechargeable battery, the battery is safe to use.
It is forbidden to hit, squeeze or throw into fire. If severe swelling occurs, please do not continue to use it. Do not place it in a high temperature environment. It is forbidden to use the battery after it is immersed in water.
Do not try to remove the battery from the earbud to avoid damage to the earbud.
The earbud will automatically consume power when it is put on hold. It is recommended to charge the earbud every 1 month.
Precautions
- Do not place the earbud in a place that is humid, full of dust, oily smoke or steam, or exposed to direct sunlight. Do not leave the earbud in the car for a long time. Otherwise, it may cause a malfunction.
- Using this earbud to listen at high volume may affect your hearing. For traffic safety, please do not use this earbud while driving or cycling.
- Do not use earbud in places where the inability to hear environmental sounds will cause danger, such as railway crossings, railway station platforms, pedestrian crossings, and construction sites.
- Do not place heavy objects or apply pressure on the earbud, otherwise it may cause deformation of the earbud during long-term storage.
- The static electricity accumulated in the body may cause slight irritation in the ears. Wearing clothes made of natural materials can minimize the impact.
- Do not subject the earbud to excessive impact.
- Please use a soft dry cloth to clean the earbud.
- Do not expose the earbud to water. The earbud is not waterproof. Remember to observe the following precautions.
- Be careful not to let the earbud fall into the sink or other containers filled with water.
- Do not use the earbud in humid places or bad weather, such as rain or snow.
- Do not get the earbud wet. If you touch the earbud with wet hands, or put the earbud in damp clothing, the earbud will get wet and this may cause the earbud to malfunction.
- Because the product is magnetic, keep it away from electronic products such as bank cards, mobile phones, computer monitors, TVs, etc.
- If you feel unwell after using the Bluetooth device, stop using it immediately. If the problem persists, please contact your local dealer.
- If you have any questions or problems about this earbud that are not covered in this manual, please contact your local dealer.
When you feel uncomfortable wearing the earbud or the sound is blocked , you can choose other types of ear caps prepared for you, which will bring you a better wearing experience and high-quality sound quality.
Precautions
The charging contact area of the charging case is magnetic. If metal objects are adsorbed, it will enter the protection mode, which will cause the earbud to fail to charge. Please insert the charging cable to reactivate the charging case.
FCC
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
Changes or modifications not expressly approved by the party 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.
IC Caution
This device complies with Industry Canada’s licence-exempt RSSs. Operation is subjectto the following two conditions:
(1) This device may not cause interference; and
(2) This device must accept any interference, including interference that may
cause undesired operation of the device
The device has been evaluated to meet general RF exposure requirement. The device can be usedin portable exposure condition without restriction.
Warranty & Customer Support
For questions, support, or warranty claims, contact us at the mail below that corresponds with your region. Please include your Amazon order number and product mode number.
Amazon US orders: [email protected]
Amazon EU orders: [email protected]
Amazon UK orders: [email protected]
Amazon CA orders: [email protected]
Amazon JP orders: [email protected]
Other region orders: [email protected]
*Please note, ACEFAST can provide after sales service for products purchased from any official ACEFAST store. If you have purchased from local seller, you can also contact them directly for service or warranty issues.
Shenzhen Houshuxia Technology Co., LTD
www.acefast.com | [email protected]
Rm203, 2nd Floor, Building C, Youth Pioneer Park,
Jianshe East Road, Tsinghua Community,
Longhua Street, Longhua District, Shenzhen, P. R. China
Shenzhen, 518000, China