These Califone 3068AV stereo/mono headphones are perfect for metal detecting and ham radio use. They feature a 3.5mm jack for easy connectivity and provide a comfortable listening experience with their adjustable design. The black color gives them a sleek and professional look, while the stereo sound ensures a clear and immersive audio experience. Made in China, these headphones are a great addition to any setup for computer, tablet, or laptop use.