First check what type of phone you have then under the bluetooth options make sure that your bluetooth is enabled. Then after make sure that the bluetooth has been fully charged. If you hold down the power button (the only blue big button) on the bluetooth for at least 3-5 seconds it should glow red and blue or turn purple, let go and it should be ready for pairing. Then go back to your phone under the bluetooth options and make sure that your phone is discoverable and that your phone is searching for the phone. The default code is 0000.