Product description specifications: 1. Power supply: 19V (6F22) 2. Frequency: 5.0kHz 3. Current: Static: 10mA Maximum: 70mA 4. Voltage: 7.2-9.6V. 5. Sensitivity: US 25 cents: 130mm 6.Display mode: mechanical pointer method 1. Versatility - Great for finding metal objects and wherever hidden metal needs to be detected. Adjustable Sensitivity - Easily control the detector's sensitivity using the sensitivity control. 2. Reasonable design - specially designed for finding metals - looking for gold and silver jewelry, coins and other metals underground (iron nails, iron covers, aluminum rings, small aluminum products, coins, gold, copper, silver). Easy to use - This metal detector is tailor-made for inexperienced metal detectors and is suitable for children. 3. ADJUSTABLE VOLUME - Adjust the speaker volume when searching for lost or misplaced coins, trinkets, and other metal items. Application: finding coins, gold and silver, identifying various metals, popular science education, parent-child activities, simple metal detection 4. Detection Indicator - Audio alarm and LCD display indicate metal detected. Waterproof Search Coil - You can use a metal detector with a waterproof search coil in shallow water. The product requires only a 9 V battery to operate. If it stops working for a long time, please remove the battery. 5. GREAT GIFT - This small metal detector for kids makes a great gift for birthdays, Christmas, or any special day you want to surprise. Everyone has a treasure hunting dream, whether a child or an adult. Kids Detector With your detector, you can explore coins, relics, jewelry, gold and silver jewelry everywhere. This detector is versatile and very easy to use. application: Search for metal objects buried underground. Widely used in security inspection, outdoor treasure hunting, metal inspection, etc. notepackcontents 1pcs Kids Detector .