Be Your Own Rock and Mineral Expert Pinpointers Built-in controls allow you to

Built-in controls allow you to access key detector settings directly from the headphones

and wind change the landscape

Excellent sensitivity to small gold nuggets

1/4" to 2-pin Z-Lynk Adapter Cable for Garrett AT Series Headphones

Easy to cut and customize for various applications

Be Your Own Rock and Mineral Expert Pinpointers Built-in controls allow you toA collection of hands on experiments and activities using rocks and minerals. Topics discussed include: the Earth's crust and core; geological time scale; make your own clinometer; taking samples; collecting fossils; classifying, arranging and displaying samples; and looking at crystals.