Pro Scan portable hand-held metal detector has fast detecting speed and high sensitivity. This metal detector is perfect for detecting prohibited metal items. It can be used in schools, prisons, airports, clubs, bars, theaters, sports stadiums, cruise ships, casinos, and more. The metal detector is powered by a 9-volt battery (not included). There is a 2.1mm charging jack on the side of the metal detector. This charging jack can charge a rechargeable 9-volt battery (not included). It will detect small metal objects like paper clips and large objects like a handgun. Has a low sensitivity mode for helping locate bigger objects. Includes a wrist strap and belt holster for easy carrying.