Adult Professional Metal Detector, Professional Treasure Hunting Gold Detector, IP68 Waterproof 10 Inch Detection Plate, High-Precision

SKU: GW50.0086

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Yes, you can connect external headphones through the 3.5mm headphone jack, which helps you focus on detection without being affected by any noise. 
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Yes, equipped with an LCD screen with adjustable brightness, you can still use the metal detector very conveniently even in a dim environment or at night. 
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The metal detector has a 10 inch search coil and can even detect a quarter of a coin with a depth of 10 inches. It also features an IP68 waterproof coil, which means you can explore underwater treasures.