ACEFAST Crystal 2 Color Bluetooth Earbuds User Guide

Crystal 2 Color Bluetooth Earbuds User Guide

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.

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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.

1. Take out the earbuds to automatically turn on, wait for about 3 seconds, the earbuds will be automatically paired.
2. 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:

• 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.
• 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.
• The left and right earbuds can be used separately.
• If the pairing fails for a long time, please put the earbuds back into the charging case for reconnection.
• 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:

1. 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.

2. Power off: the earbud is automatically turned off when it is placed in the charging case.

Calls:

1. Answering a call: during incoming call, double-tap the touch area.
2. End the call: during a call, double-tap the touch area.
3. Reject the call: during incoming call, press the touch area for 2 seconds.

Operation method

Operation method:

1. 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).
2. Pause the music: double-tap the touch area when playing music or operate the player on the phone.
3. Next song: when playing music, three taps on the touch area of the right earbud.
4. Previous song: when playing music, three taps on the touch area of the left earbud.
5. Volume +: tap the touch area of the right earbud, and there will be a tone at the maximum volume.
6. Volume-: tap the touch area of the left earbud, and there will be a tone at the minimum volume.
7. 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.
8. 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.

| Tap the touch area of the right earbud
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| Tap the touch area of the left earbud
| Double-tap the touch area
| Three taps on the touch area of the right earbud
| Three taps on the touch area of the left earbud

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.

• Listening to music in game mode may be stuck, please switch to music mode for a better experience
• 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.

Operation method
Charging case display and lighting effect:

1. 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.
2. 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:

Charging case power level ＜10%| When the charging case is charging, the warm red gradient light breathes.
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When the charging case is not charging, take out/put in the earbuds – the warm red light turns off after breathing three times.
Charging case power level ≥10%| When the charging case is charging, the product corresponding  color light will breath.
When the charging case is not charging, take out/put in the earbud, product corresponding color light turns off after breathing three times.

Charge:

1. 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.

2. 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.

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.

Warranty & Customer Support
For questions, support, or warranty claims, contact us at the mail below that corresponds with your region. Please include yourAmazon order number and product mode number.

Amazon US orders: support1@acefast.com

*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
support@acefast.com
Rm203, 2nd Floor, Building C, Youth Pioneer Park,
Jianshe East Road, Tsinghua Community,
Longhua Street, Longhua District, Shenzhen, P. R. China
Shenzhen, 518000, China

Documents / Resources

| ACEFAST Crystal 2 Color Bluetooth Earbuds [pdf] User Guide
Crystal 2 Color Bluetooth Earbuds, Crystal, Crystal 2 Bluetooth Earbuds, Color Bluetooth Earbuds, 2 Bluetooth Earbuds, Bluetooth Earbuds, Earbuds
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References

• ACEFAST - High End Accessories

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