Hello, I purchased a whites Prizm 2 at an estate sale yesterday for twenty dollars. I cleaned it up and it works and just came from a park to test it out . New batteries are in there and I adjusted the sensor settings it seems.cut and dry for this detector. However it seems real sensitive and I don't have a head set nor do I know how to adjust the volume control which is to loud. I am a coin collector and just wanted to try this out for fun . By the way I didn't find anything due that I have to work the bugs out first on this detector. Any information will be of help thank you.