Pairing and connecting with an Android smartphone

The operation to register the device that you wish to connect to is called “pairing”. First, pair a device to use it with the headset for the first time.

Before starting the operation, make sure of the following:

  • The Android smartphone is placed within 1 m (3 feet) of the headset.
  • The headset is charged sufficiently.
  • The operating instructions of the Android smartphone is in hand.
  1. Enter pairing mode on this headset.
    1. Set the headset into the charging case.

      Put the left unit of the headset (the unit with the tactile dot) back into the left hole of the charging case, put the right unit of the headset back into the right hole of the charging case, insert the units until they click, and then make sure that the units are locked in the charging case.

    2. Close the lid of the charging case.

      By closing the lid once, the headset units are straightened and locked in place, even if they were not locked in the charging case before.

    3. Hold the charging case in your hand and press the lid open button to open the lid.

    4. Press and hold the pairing button of the charging case for about 5 seconds or more.

      The indicator (blue) on the charging case repeatedly flashes slowly twice in a row and the headset goes into pairing mode.

      You can remove the headset from the charging case after entering pairing mode. When you put the headset units into both ears, you will hear a notification sound and the voice guidance say “Pairing”, from both headset units at the same time.

  2. Unlock the screen of the Android smartphone if it is locked.
  3. Find the headset on the Android smartphone.
    1. Select [Settings] - [Device connection] - [Bluetooth].

    2. Touch the switch to turn on the Bluetooth function.

  4. Touch [LinkBuds UC].

    If Passkey* input is required, input “0000”.

    The headset and smartphone are paired and connected with each other.

    When the headset is stored in the charging case, the indicator (blue) on the charging case flashes slowly for about 5 seconds.

    When you are wearing the headset, you will hear a notification sound from both headset units at the same time.

    If they are not connected, see “Connecting to a paired Android smartphone”.

    If [LinkBuds UC] does not appear on your Android smartphone screen, try again from the beginning of step 3 .

    *A Passkey may be called “Passcode”, “PIN code”, “PIN number”, or “Password”.

About the instruction manual video

Watch the video to find out how to perform the pairing for the first time.



  • If pairing is not established within 5 minutes, pairing mode is canceled. In this case, try again from the beginning of step 1 .
  • Once Bluetooth devices are paired, there is no need to pair them again, except in the following cases:
    • Pairing information has been deleted after repair, etc.
    • When a 9th device is paired.
      The headset can be paired with up to 8 devices. If a new device is paired after 8 devices are already paired, the registration information of the paired device with the oldest connection date is overwritten with the information for the new device.
    • When the pairing information for the headset has been deleted from the Bluetooth device.
    • When the headset is initialized.
      All of the pairing information is deleted. In this case, delete the pairing information for the headset from the connected device and then pair them again.
  • The headset can be paired with multiple devices, but can only play music from 1 paired device at a time.