Famous Trails "The Advanced" Metal Detector

Received it today. The two shafts would not fit together, one was not large enough for the other one to slip inside. Made do then I tried follow the set up instructions. One sentence read, "Adjust TUNE controller until you hear a critical sound from the speaker". I have no idea what a critical sound is. Does it mean, adjust until you hear a sound or until the sound becomes loud? The rest of the instructions did not make any sense to me either. Called Famous Trails toll free number for help,,,no one home on a Friday afternoon. Logged onto their web site hoping to find a video to watch, they don't have one. I clicked on the owner's manual on their site,,,don't ask me why. It was different from the one I received with the unit even though it was for the same model. It said the Sensitivity knob turns the unit on/off. Mine turns on with the volume knob. Emailed customer service for help. We'll see if I get any. Wanted to play with it this week end, but that is not going to happen. If you...Read more