Factory Setting is usually 0000. In order to pair with your mobile (Max 8 phones), Depress green button on ST ONE R57 for 5 seconds approx. Light will flash red & blue, indicating that device is in pairing mode. Phone should have "Bluetooth" switched on (in settings) and search mode activated. Good luck
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You will probably need the manual at some stage. You can download from: www.Supertooth.net will take you directly to the manuals.
http://www.supertooth.net/EN/CRYSTAL/
Factory Setting is usually 0000. In order to pair with your mobile (Max 8 phones), Depress green button on ST ONE R57 for 5 seconds approx. Light will flash red & blue, indicating that device is in pairing mode. Phone should have "Bluetooth" switched on (in settings) and search mode activated. Good luck