Galaxy Buds: How to connect earbuds to a mobile phone?

Once the earbuds are connected to your mobile device, they will automatically connect to your mobile device whenever you open the charging case while the earbuds are inside it.

•  If the earbuds do not connect to a mobile device within three minutes, Bluetooth pairing mode
  will be deactivated. Close the charging case again and open it. The earbuds will enter Bluetooth paring mode.

• If you want to connect earbuds to another mobile device after a connection has been established, turn off Bluetooth of previously connected mobile device first so that the earbuds do not connect with the previous device.

• If the earbuds do not connect to a mobile device, the connection pop-up window does not appear or your mobile device cannot find the earbuds, then tap and hold earbud’s touchpad to enter the Bluetooth pairing mode manually.

Note for downloading of Galaxy Wearable app :

• You can download Galaxy Wearable app only on mobile devices running Android operating system 5.0 (API 21) or above and with 1.5 GB of RAM or more.

• You can change the language of the Galaxy Wearable app on your connected mobile device.
On your mobile device, launch Settings → General management → Language and input → Language. English may appear by default if the selected language on the Settings screen is not supported on the Galaxy Wearable app.