The 4.2Inch serach coil helps to detect small items in a variety of hunting conditions. Three different degree of sensitivity adjustment. Hand-held,small and , tracking. IP68 warterproof, It can be used when diving. It with audible and static alarms to indicate the presence of metal objects. alarms increase in intensity as the equipment is moved closer to the metal target. With this metal detector, you can hunt for coins, relics, jewelry, gold, and silver anywhere, including lawns, snows, mountains and etc., Weight: 0.7275254646 pounds, Manufacturer: MOLERRI