Features:Features: The handheld metal detector detects ferrous and non-ferrous metals.Adjustable sensitivity: It can also locate metal objects in camouflage hiding places, such as people, mail and package shipments, walls, paneling, hollow Spaces and the ground.Specifications: Power supply voltage: Standard 9V or rechargeable-battery (not included)Current consumption: Less than 3mA Size: 395mm (operation) /260mm (storage)Package: 1*DM3004A metal detector,1 * User manual.Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurementDescription:Size:As Picture ShownOperating temperature: -10 ~ +501. Turn on the detector and emit a beep to indicate that the detector is working. (If the buzzer hiss or the alarm light continues to light, it indicates that the battery needs to be replaced).2. Make a beep to indicate metal during the scan.3, detection of underground objects, it is recommended that the detection head is parallel to the ground.