To turn on your Revols, hold the play/pause button on the inline control box for 5 seconds until you see a green light. If no light appears, try charging your earphones with either your Revive battery pack or your charging cable. You can find instructions on how to charge here.
Still no luck getting them to turn on after giving them a full charge, reach out to our support team at email@example.com. Be sure to include a description of the problem and each step that you took to try to troubleshoot on your own.