The Uzi Handheld Metal Detector Scanner is easy to use and features one switch operation. It is easy to adjust the sensitivity of the metal detector and the entire unit is created with rugged, high-impact ABS materials that feature reinforced coil compartments. The large scan surface allows you to scan quickly and when metal is detected a sharp, audible alarm can be heard. Additionally, a bright LED light indicates metal detection and the detector can be placed in silent mode.