Feature:1. Accurate Location: This handheld metal detector is expertly designed for accurate detection of ferrous and non ferrous metals, featuring a 4.2 inch coil for locating even the smallest targets.2. LED Flashlight Feature: Equipped with a built in LED flashlight, this metal detector illuminates dark and low light environments, ensuring dependable performance even in challenging underwater conditions.3. Complete Water Proof IP68: The metal scanner boasts IP68 water proof rating, making it suitable for detecting metal objects underwater, in lakes, and at sea, enhancing underwater treasure finding efficiency.4. Sound and Vibration Feedback: With sound and vibration indicators, this metal detector provides accurate notifications of metal target proximity. The strength increases as you get closer, improving detection accuracy and scan coverage.5. Ergonomic Design: Featuring an integrated water proof plastic shell and ergonomic control layout, this metal detector ensures durability and ease of use underwater, even under the most adverse conditions.Specification:Item Type: Underwater Metal Detector Material: ABS Battery: 1x9V 6F22 Dry Battery (Battery not included)Frequency: 3.2kHzDetection Coil: Approx. 10.67cm / 4.2in.Package List:1 x Metal Detector1 x Lanyard1 x User Manual