Connect with iOS Device :
1.Open the lid of case and turn on the bluetooth on device , the pop up function will work . And you will see a notice to press the button on the back of charging case .
2.Long press(about 4s) the button , you will see the white led blink . And the earbuds will connect with phone automatically .
Connect with Android or Other Device :
1.Open the lid of case and long press(about 4s) the button until make sure that the white led on the charging case blink .
2.Turn on the bluetooth on device to search the earbuds bluetooth signal to connect .
