"1
Place both headphones in the case.
2
Press and hold both buttons until the earphone status lights briefly turn blue.
3
At this point, you can release the buttons as the reset procedure is complete.
4
The earphones will no longer remember any of the devices that have previously paired with them.
5
You will then need to follow the initial setup procedure from scratch including the manual Bluetooth pairing process, achieved by holding down the earphone buttons for 3 secs to enter pairing mode."