What should I do if the problem about the headphone is not mentioned in this FAQ?

If there is no solution for your problem in this FAQ, please feel free to contact our Customer Service Team([email protected]) and we will provide you a solution as soon as possible. If we confirmed that the problem couldn't be solved, we will APPly the replacement or refund for you. TUREFREE provides an 12-month warranty for every product. Your satisfaction is always greatly important to us.


How to pair TRUEFREE F2?

1.Please press and hold the power button of the headphones for 3 seconds to turn on the headphones. Then the red and white indicators start to flash alternately, and the headphones enter the pairing mode.

2.Turn on your device's Bluetooth and select "TRUEFREE F2" from the Bluetooth list to complete the pairing.


How to reset TRUEFREE F2?
1. Please use the charging cable to charge the headphones and ensure that the headphones are in charging status.

2.Press and hold the power button of the headphones for 3 seconds until red and white indicators flash    alternately twice.

3.Unplug the charging cable and turn the headphones on, then the reset is complete.


Why is the Bluetooth connection unstable sometimes?







Case 1

When using the headphone close to personal computers, Wi-Fi routers, microwave ovens, refrigerators, etc.

Refrigerators, microwave ovens, Wi-Fi routers, personal computers, etc. are devices that emit radio waves.

The headphone may be affected by these radio waves when using them in a location with a mixture of multiple radio waves.

Please use the headphone away from Wi-Fi routers, personal computers, microwave ovens, refrigerators, etc. in order to avoid radio wave interference.






Case 2

When using the Bluetooth device in the pocket of the chest or pants, or a bag while listening to the audio.

If the engine ear is diagonal to the Bluetooth device, it will affect the Bluetooth signal.​ As human body is the biggest source of signal blocking.

When put the Bluetooth device in a pocket or bag, move the Bluetooth device to a place where there are no obstacles between Bluetooth device and headphone (such as the human body) for Bluetooth communication.



Case 3

When using the headphone closes to the other Bluetooth devices.

The headphone may be affected by these radio waves when using them in a location with a mixture of multiple radio waves.

Turn off the Bluetooth function of the other Bluetooth devices.




Case 4

When using the device away from the headphone, such as in a different room.

Bluetooth communication gradually becomes weaker the further away Bluetooth headphone are placed from a Bluetooth player.When using Bluetooth headphone  and a Bluetooth player in different rooms with the doors closed, Bluetooth communication may be weak.

Keep the Bluetooth headphone as close to the Bluetooth player as possible.


Case 5

When a lot of APPlications are running at the same time when use the Bluetooth function.

Quit APPs which you are not using on the device to reduce the load.


What can I do if the headphone stopped connecting to my device?
1. Clear the pairing record between the headphone and all of the previous devices.

***Please note that the headphone will automatically remember the last pairing record. If you want to connect to the new device, you may need to clear the pairing record on the last device, then connect to the new device.

2. Try to clear some Bluetooth listings on your device and restart the device.
3. Please reset the headphone.


How to connect the headphone with two devices at the same time?

 Please activate the multi-point connection function in the TRUEFREE APP before you are ready to use it. .

 The pairing steps are as follows;

  1. Turn off the Bluetooth on Device A after successfully connecting to the headphones.
  1. Repeat the pairing operation to connect the headphones to Device B.
  2. Turn on the Bluetooth on Device A after successfully pairing to Device B.
  3. Once the headphones are re-connected with Device A, the multipoint

connection function can work now.

 Picture display:


Why does the volume of the headphone reduce?
  1. This has a lot to do with the wearing angle, please try to adjust the wearing angle as the following.


  1. Please volume up by the headphone and your device.


Why the earphone lost the sound all of a sudden?

Please check if you connect the earphone to the other device at the same time, then please clear the pairing record on the device which you do not need temporarily.


Why the other side could not hear me well when calling?
  1. Please choose to pick up phone calls via the headphone.
  2. Please do not mute the phone calls.
  3. Please clean the Mic holes to avoid dust or secretions blocking.
  4. Please kindly adjust the volume through the headphone and devices.
  5. If you are using the headphone with an Android phone, please check the settings to see if you have allowed both phone audio and media audio to be transmitted through the headphone.
  6. Please change other devicesto have a try.


How to confirm the charging states?

1.The red light stays on when the headphones are charging.

2.The white light stays on when the headphones are fully charged.

How to charge the headphone?

1.Remove the silicone plug at the charging port, and connect the Type-C charging cable to the headphones for charging. (The current does not exceed 1A).

2. If the earphones stay idle for an extended period, charge them at least every three months to prevent the battery from being damaged.



How to register an account?
  1. fill in email address; set and confirm password(use some combinations of letters and numbers, avoid special characters like %$^&);
  2. click "get verification code";
  3. Type in the code you get from your email;
  4. Finish register;


Fail to receive the verification code? 
  1. Make sure your phone is connected with good network and try to send the code again about 5minutes later;
  2. Check your spam folders/junk inbox first, check if your email blocks the spam emails;
  3. Try to register with a different email address;
  4. Uninstall the APPof the TRUEFREE then re-install it and restart your device to register again;
  5. Please manually type your e-mail into the area instead of auto fill for your email address, and also please pay attention to the format of English letters and the space before and after the email address;
  6. Please try to turn off anti-virus software. If you have data encryption software on your phone, you may have to turn it off momentarily;


What can I do if the headphones wont connect to the APP?

1.Please first to check if your TRUEFREE headphones APP has updated to the newest version.

2.You can log in the APP and find the icon with three bars in the upper left corner, find "about" to check the TRUEFREE version is. Please upgrade to make sure you get the newest version.

3. Please make sure that the headphones Bluetooth name is the default “ TRUEFREE F2“.If you changed the default name, please change to its original format. Then restart your phone.Please note that if you change the default Bluetooth name of the model, it may cause connection issue to this APP.

4.Please make sure both headphones pair with each other, then connect to you phone first. After the headphones connected to your phone, then please open the APP to connect headphones.

5. If the headphones could not still connect to APP, please follow the steps one by one:

-try to turn off headphones APP completely (Turn off the background running of the APP totally);

-unpaired the headphones via your phone, then turn off phone Bluetooth;

-put two headphones into the charging case and do a reset as the manual;

-reconnect the headphones to your phone first after reset (In this step, please make sure TRUEFREEAPP is off);

-re-open the APP to search headphones to connect to APP;


What can I do if the APP could not update?

 Please try the following:

  1. Please try to reset the headphones as the manual;
  2. Take the headphones out of the charging case and leave some time for the two headphones to pair with each other. Then please turn on the blue tooth of your phone to connect with the headphones;
  3. Make sure your phone is connected with good network. Turn off the APPand reopen it;
  4. Try to connect the APPwith your phone and do the upgrade again;
  5. Precautions during the APP upgrade process:

        - During the upgrade, the distance between the headphones and the mobile phone must be within 0.5 meters;
        - Do not put the headphones into the charging case;
        - Do not disconnect, play music, or answer the phone calls;
        - Don't close or shrink the upgrade page;

Message Us