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Aukey True Wireless Earbuds EP-T21 Manual | Guide

The Aukey True Wireless Earbuds EP-T21earbuds come with specs such as Bluetooth 5.0 with a working range of 10 meters, 6mm drivers and built-in microphones in each earbud, a battery life of about 5 hours + 30 using the charging case, touch controls, the IPX4 sweat and dust-proof certification, and much more. Learn how to use these earbuds using this Aukey True Wireless Earbuds EP-T21 manual!

In case you are interested in purchasing these earbuds, you can do so through the Aukey online store. Also, if you want to give the original manual a look, you can do it here.

Aukey True Wireless Earbuds EP-T21 Specs Sheet

ModelAukey True Wireless Earbuds EP-T21
WeightEarbuds: 9 grams each
Charging case: 33 grams
Waterproof/IP ratings  IPX4
Bluetooth version          V5.0
Range/Distance10 meters
Connectivity Port/ Charging CableType-C
Audio Decoding               SBC, AAC
Driver  6mm dynamic
Speaker frequency response20Hz – 20kHz
Battery Life       Earbuds: 5 hours
Charging case: 30 hours
Charging Time  Earbuds: About 2 hours
Charging case: About 2 hours
App Support     No
Controls/Features         Play and pause a song, play the next and previous song, answer, end and reject a call, voice assistant, answer a second incoming call and put the first call on hold, reject a second incoming call while on an active call
Accessories       Charging case, user manual, USB cable, silicone ear tips, quick start guide
Price40 USD

Aukey True Wireless Earbuds EP-T21 Accessories

The earbuds come with the following accessories:

  • Charging case.
  • User manual.
  • USB cable.
  • Silicone ear tips.
  • Quick start guide.
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Credits: Headphones Addict

Aukey True Wireless Earbuds EP-T21 Manual | Guide & Troubleshooting

How To Wear These Earbuds?

Step 1: Take both earbuds out of the charging case.

Step 2: Identify the left and right earbuds.

Step 3: Choose the ear tips that best suit your ears.

Step 4: Insert the headphones into the inner canal of the ears.

Step 5: Rotate for the best possible comfort and best fit, and make sure that the microphone is pointing to the mouth.

How To Turn On And Off?

Turn On

Automatically: Open the lid of the charging case and take the earbuds out. After that, the earbuds will turn on automatically.

Turn Off

Automatically: Place the earbuds into the charging case. After that, the earbuds will turn off automatically.

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How To Pair The Earbuds?

To Android And iOS Devices

Step 1: Open the lid of the charging case and take the earbuds out. After that, the earbuds will turn on automatically and pair with each other.

When a green and red light starts flashing on the earbuds, it means that they will be ready to pair with any device.

Step 2: Unlock the desired device.

Step 3: Go to the device’s settings.

Step 4: Turn on Bluetooth on the desired device.

Step 5: Search for a new device.

Step 6: Select the AUKEY EP-T21 earbuds. If a password is needed, type “0000”.

After that, the pairing will be done.

To Windows (PC)

Step 1: Turn on the Window’s Bluetooth.

Step 2: Go to the settings.

Step 3: Go to “Bluetooth and other devices”.

Step 4: Click on “Add device”.

Step 5: Click on Bluetooth.

Step 6: Open the lid of the charging case and take the earbuds out. After that, the earbuds will turn on automatically and pair with each other.

When a green and red light starts flashing on the earbuds, it means that they will be ready to pair with any device.

Step 7: Select the AUKEY EP-T21 earbuds. If a password is needed, type “0000”.

After that, the pairing will be done.

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How To Control These Earbuds? – Stereo Mode

NOTE: The multifunction touch sensor is placed on the top outside part of the stem of the earbuds.

  • Play or pause a song: Press the multifunction touch sensor on any of the earbuds two times.
  • Play the next song: While listening to music, press and hold the multifunction touch sensor on the right earbud for about 2 seconds.
  • Play the previous song: While listening to music, press and hold the multifunction touch sensor on the left earbud for about 2 seconds.
  • Answer an incoming call: Press the multifunction touch sensor on any of the earbuds two times.
  • End a current call: Press the multifunction touch sensor on any of the earbuds two times.
  • Answer a second incoming call and put the first call on hold: Press the multifunction touch sensor on any of the earbuds two times.
  • Reject a second incoming call while on an active call: Press and hold the multifunction touch sensor on any of the earbuds for about 2 seconds.
  • Reject an incoming call: Press and hold the multifunction touch sensor on any of the earbuds for about 2 seconds.
  • Activate the voice assistant: Press the multifunction touch sensor on any of the earbuds three times.
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How To Activate The Mono Mode?

To activate or deactivate the mono mode in these earbuds, all you have to do is pair the earbuds to the device and take out one of the earbuds from the charging case. It will start working by itself.

How To Charge The Earbuds?

Earbuds

To charge the earbuds, all you have to do is place them into the charging case and close its lid. The earbuds will start charging automatically.

Charging Case

To charge the charging case, all you have to do is connect the case to a USB charger or charging port. It will start charging automatically.

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How To Reset And Re-Pair These Earbuds?

NOTE: To ensure a good result, make sure that the earbuds are fully charged.

Step 1: Go to the device’s settings.

Step 2: Delete the AUKEY EP-T21 earbuds from the devices’ Bluetooth list.

Step 3: Turn off Bluetooth on the device.

Step 4: Open the lid of the charging case and take the earbuds out. After that, the earbuds will turn on automatically.

Step 5: Press and hold the multifunction touch sensor on both earbuds for about 10 seconds, or until a red and green light flashes three times simultaneously. This will reset the earbuds.

Step 6: Place the earbuds into the charging case. After that, the earbuds will turn off automatically.

Step 7: Turn on Bluetooth on the desired device.

Step 8: Search for a new device.

Step 9: Open the lid of the charging case and take the earbuds out. After that, the earbuds will turn on automatically.

When a green and red light starts flashing on the earbuds, it means that they will be ready to pair with any device.

Step 10: Select the AUKEY EP-T21 earbuds. If a password is needed, type “0000”.

After that, the pairing will be done.

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Credits: Charger Harbor

Do These Earbuds Have An App?

Sadly, these earbuds don’t come with a specialized app or app support.

What Do The Lights Mean?

Earbuds

  • A green and red light starts flashing on the earbuds: The earbuds will be ready to pair with any device.
  • A green light flashing: The earbuds are reconnecting.
  • A red light on while on the charging case: The earbuds are charging.
  • A green light flashing for 1 minute while on the charging case: The earbuds are fully charged.
  • A red and green light flashes 3 times simultaneously while resetting: The earbuds are resetting.

Charging Case

  • A green light on while charging: The case is charging.
  • The green light turns off while charging: The case is fully charged.
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Some Common Problems & Troubleshooting

Left/Right/One side of the earbuds has stopped working

If this happens, it may be because it is low on battery or it did not connect correctly with the device. To fix this, you can do the following:

1. Try charging the earbud that is not working or both, placing them in the charging case.

2. Try factory resetting the earbuds.

3. Check if the earbuds are operating within a normal working range

If that doesn’t work, the earbud is probably faulty, and I can go for a refund or replacement of it.

Left/Right/One side of the earbuds has a low volume

If this happens, it may be because the earbuds are dirty or the volume is set low. To fix this, you can do the following:

1. Try cleaning the earbud using a cotton swab or carefully clean the mesh with a pin.

2. Try factory resetting the earbuds.

The microphone is not working

If this happens, it can be because the microphone is muted, or the earbuds are badly positioned. To fix this, you can do the following:

If the microphone is muted, check the device microphone volume. If that doesn’t work, that means that there might be a defect in the earbuds, so try replacing them or getting a refund.

The earbuds are not connecting to Windows/laptop/PC

If the earbuds are earbuds not connecting, it can be because the Bluetooth on the computer has a pairing problem. To fix this, you can do the following:

1. Try disabling Bluetooth from nearby devices >>> then activate the pairing mode of the earbuds, pair and connect earbuds from Settings >>> Bluetooth & other devices >>> Add a new device >>>> Select Bluetooth.

2. Try uninstalling and reinstalling the Bluetooth driver, or updating the Bluetooth driver. All can be done in Manage >>> Device Manager, reset earbuds (if available), and then repeat the step.

3. Try resetting the earbuds.

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Credits: Charger Harbor

FAQs

Are the Aukey True Wireless Earbuds EP-T21 waterproof?

No, the Aukey True Wireless Earbuds EP-T21 are not waterproof (IPX6 and up). They have a rating of IPX4, which means they’re protected against some water projected from a nozzle.

Do the Aukey True Wireless Earbuds EP-T21 have a microphone?

Yes, the earbuds come with integrated microphones.

Do the Aukey True Wireless Earbuds EP-T21 have a low latency/gaming mode?

No, these earbuds don’t have a low latency/gaming mode.

Can the Aukey True Wireless Earbuds EP-T21 connect to PCs and laptops?

Yes, these earbuds can connect to PCs and laptops.

Are the Aukey True Wireless Earbuds EP-T21 noise-canceling?

No, these earbuds don’t come with noise-cancellation technology.

How to know when the Aukey True Wireless Earbuds EP-T21 are fully charged?

When the earbuds are charging, a red light is on. When fully charged, the light turns green and flashes for 1 minute.

We hope you now know how to operate the earbuds from the above Aukey True Wireless Earbuds EP-T21 manual! Want to know anything about the earphones? Do not hesitate to ask in the comments section.