Portable Handheld Metal Detector Metal Detecting Tool High Sensitivity High Accuracy Jewelrys Treasure Gold Metal Finder with Waterproof Search Coil School Science Experiment for Adults and Kids With your metal detector, you can hunt for relics, jewelry, gold, and silver just about anywhere. The detector comes with high sensitivity and strong ability of discrimination. With this metal detector, also can enhance children's and students' interest in exploring nature, where a lot of substances have metal properties and exist in various forms. Come on and try it, it will not let you down. Features: The height of the metal detector is adjustable, so it can be used by more adults and children of different heights. Wide ran-ge of applications: suitable for finding and testing metal objects, gold and silver jewelry, relics, etc. Whether you are a budding treasure hunter or an experienced metal detecting hobbyist, you can easily use it. Waterproof search coil: lets you search for metal objects under shallow water. With high sensitivity and made of fine material, not easy to break, has a long service time, you do not need to change it often. Small in size and easy to carry, you can take it with you to anywhere you want e it. Specifications: Material: ABS Power: 1 * 9V battery (NOT included) Signal frequency: 3.1KHz+/-1KHz Current: Static state: 41.89mA Max.: 86.45mA Voltage: 8.1~9V Sensitivity: USA 25 cent: 100~120mm Package size: 485 * 185 * 115mm / 19.1 * 7.3 * 4.5in Package weight: 750g / 1.7lb Packing list: 1 * Host 1 * Search Coil 1 * Extension Rod