- DIY electronics learning kit: features loose circuit boards that you solder and assemble yourself, providing hands-on experience with basic electronics and metal detection principles. - Simple metal detector set: a straightforward kit designed for easy assembly to yield a functioning detector. - Practical uses: suitable for gaming entertainment, basic security checks, and searching for metal objects around home, yard, or park. - Performance: detection range 3-5 cm; the detection distance increases with larger metal objects, meaning bigger metal areas are detected farther away. - What to expect: requires soldering and assembly by the user. - Use scenarios: - Education and hobby project for students or electronics enthusiasts. - Treasure hunting or hobby metal detecting in yard or park. - Family entertainment or practical, small-scale security screening in casual settings.