Hi Jan Neiges and welcome to Android Forums. You will first want to put your BT device in discovery mode. It's likely a combination of buttons on the device but should be explained by your instructions. Once in discovery mode set your phone into a search mode. It should find any BT device within range. Once it shows your BT device as found, you might have to enter a code to confirm the marriage between the two. This is often 0000 but should also be specified by the BT instructions if needed. I hope this helps and enjoy your new BT device.