With children metal detector, you can hunt for Coins, Metal, Jewelry, Gold, Silver and other metal objects everywhere. It is a perfect toy for kids to learn about natural substances when going out to play, student activities, outdoor adventure, etc. Easy installation, easy to control and use. Features: High sensitivity, perfect for finding metal objects and anywhere that hidden metal needs to be detected. Can be widely used to search Gold & Silver Jewelry, coins and other metal objects in the ground. With audio alert and LCD display indicate the detection of metal. Easy installation, easy to control and use. Powered by 1* 9V-battery(not included). Specifications: Material: ABS Plastic Frequency: 5.0KHz Current: 10mA(Static state); 70mA(Max) Voltage: 7.2-9.6V Sensitivity: US 25 Cent: 130mm Power supply: 1 * 9V(6F22)battery (Not included) Item size: 685 * 165mm / 26.97 * 6.50in Package size: 455 * 180 * 75mm / 17.91 * 7.09 * 2.95in Package weight: 617g / 1.36lb Package List: 1 * Metal Detector 1 * User Manual