The Belkin AUC002 earbuds cannot be restored by themselves. They must be placed in the charging case to be restored. The charging case, however, can be restored by itself to remove any Find My account information.
NOTE: Both the Belkin AUC002 earbuds and charging case must be charged to perform a factory restore.
Locating the reset button
How to perform a factory restore

To restore the Belkin AUC002 earbuds, place them into the charging case and close the lid.
Step 2:
The status light will begin to blink blue/white to signify it's restoring your case and earbuds.
Step 3:
When the charging case status light stops blinking, open the case. The earbuds will slowly blink blue to show they are ready to pair.
How to reset the Find My functionality in your Belkin AUC002 earbuds case
If you are having trouble with the Find My functionality, you can reset it. To know how to reset the Find My functionality, click here.
Restore the case only
If you want to restore only the case, you can follow the same steps above without the earbuds in the case.