​​​​​Specification:Material:steel frame+PPPower:2x9V(6F22)Frequency:5.0KHz Audio frequency:2.3KHzQuiescent current:10mAMax current:70mAVoltage:7.2V-9.6VSensitivity:US 25 Cent:130mmStretch Length:30.7"-42.1"Detector diameter:6.5"Size:55x23x12cmIndication mode:mechanical indicator mode,sound modeOperation modes:all metal,discMain Features:Adjust the volume level of speaker and headphoneLets you connect headphones to the detectorThe meter pointer swings to the right if metal is foundLets you search for metal objects under shallow waterLets you adjust the detector's lengthYou can hunt for coins,relics,jewelry,gold and silver just about anywhereNote:Please allow 1-3cm differs due to manual measurementPlease allow color may vary slightly due to color calibration of each individual monitorPackage included:1xMetal pin pointer(battery not included)1xInstruction manualNO Retail Box.Packed Safely in Bubble Bag.