Mixcder X1 Pro Guia Del Usuario página 4

4.Restore the factory setting
(in case of TWS pairing failure)
Press and hold the MFBs of both earbuds for 8 seconds in power
off mode. Don't release your fingers until and red & purple lights
flash alternately. At this moment both earbuds will automatically
pair with each other, the red & purple lights turn off. Put the
earbuds into charging case the power on the earbuds, they will
automatically be ready to pair. Search "Mixcder X1 Pro" in
cellphone and connect them.
5.Wearing earbuds
Put the earbuds as per the microphone upwards into ears
(as above photo shows).
EN-3