This is a small hand-held metal detector. It is designed to detect metallic objects with fast response. It can be used in the airport, courts, prisons, stadiums, entertainment places for security check. The small detector can find out items that may harmful to personal safety, such as weapons, tools and hidden metal objects. Features - Color: Black. - Material: Plastic. - Size: Approx. 25 x 5 x 3 cm / 9.8 x 2 x 1.2 inch. - Power: 9V. - Frequency: 6.8KHz. - Current: 8mA(Standby); 20mA(Max.). - Measurement Range: 1-5cm. - Weight: 200g. - Features portable, lightweight and waterproof. - It can works indoors, outdoors, on sand, lawn or in soil. - Locate coin, silver, jewelry and gold fastly and accurately. - Electrodeless operating button to adjust detecting depth. - A small cover is attached to protect the detector and carry it easily.