Find the hidden treasures that hide beneath the surface with this smart metal detector that is perfect for kids. Examine the surface and find the lost coins, jewelry and other treasures that are hiding. This metal detector has a depth of 10 cm and a display with sensitivity setting. Product information: Sound and light effects (LED) when detecting metal Search depth: 10 cm Waterproof (can be used in shallow water) Can detect the following metals: Iron, nickel, gold, brass, zinc, copper, silver, aluminum Display with sensitivity setting Battery tests 165 mm wide coil, waterproof Length: 65 - 100 cm Adjustable in length, adjusted as needed 3.5 mm headphone jack 6 AA batteries are required