Portable Metal Detector Treasure Hunting Tool with Waterproof LCD Screen, LED Light Pin Pointer, Vibration Sound Detection, for Lakes

Size: 27*4.5*2 (mm) Material: ABS Operating Frequency: 3.25 GHz Battery: 9V (battery not included) Detected Metal Size: 2 mm or larger Underwater Explorers: Take your treasure hunting to the next level with our metal detectors. It can operate normally up to 30 meters underwater and is completely waterproof, allowing you to explore the underwater world. Enhanced Object Detection: Easily locate metal with our metal detector. The detector can switch between 3 different audio modes (audio only, vibration only, and audio/vibration), making metal searching easier. Versatile Uses: This metal detector has a wide range of application scenarios, such as rivers, lakes, ponds, deep water, and land, and is very suitable for detecting jewelry, coins, rings, gold, and other metal objects. 1. Power on: Press the power button and turn on the machine after hearing 2 beeps. After 1 second, continuous metal detection is enabled. 2. Power off: Press and hold for 2 seconds to turn off. It will turn off after 3 beeps. 3. Low power shutdown: When the battery voltage is below 7V