Feature: 1. IP68 FULLY WATERPROOF: Our metal detector is IP68 waterproof and can be completely immersed in water, with a maximum allowable depth of 10 feet. 2. SMALL LED LIGHT: The portable metal detection wand is equipped with upgraded small LED light, convenient for use during the day and night. 3. HIGHLY SENSITIVE: The metal detector has high detection sensitivity, the closer the target is, the more strong the signal will be, you can quickly and accurately find the target. 4. 3 MODES: Sound, vibration, sound plus vibration. Sound mode is suitable for quiet environments on land, vibration mode is recommended for underwater or areas with limited visibility, sound plus vibration mode is recommended for noisy environments. 5. MULTIPLE USE: Widely used indoors and outdoors, such as lakes, rivers, oceans, rainwater, beaches, lawns, courtyards, gardens, forests, and houses. Specification: Item Type: Underwater Metal Detector Material: ABS Battery: 1 x 9V 6F22 Dry Battery (Delivered Without Battery) Sensitivity: About ≥5cm (One Yuan Coin) Working Frequency: 11.9kHz Tune: Automatic or Manual Retuning Indication: Proportional Audio, Vibration Pulse Rate Waterproof: IP68 (Maximum 3 Meter/10 Feet) Color: Black. Package List: 1 x Underwater Metal Detector1 x Storage Bag1 x Lanyard1 x User Manual Note: Before using in water, ensure that the battery cover is tightened and sealed.