MD-3010II Professional underground Metal Detector Fully Automatic with LCD Display Gold silver Digger Treasure Hunter Unique Tone For Target: You do not have to keep watching the LCD display, when an object is being detected, an unique tone corresponding to a target will generate. You may even searching when there is little or no light. • Volume Control: For adjusting the output volume to the loud speaker or headphone. • Unwanted Target Elimination: You can set the detector not to respond to some objects. • Unique Tone For Target: You do not have to keep watching the LCD display, when an object is being detected, an unique tone corresponding to a target will generate. You may even searching when there is little or no light. • Armrest & Stem: Designed to eliminate strain on forearm. The nylon bracket to further secure the slip of the hand compartment after long time holding the detector by arm. MD-3010II Professional underground Metal Detector Fully Automatic with LCD Display Gold silver Digger Treasure Hunter Youtube Video : https://www.youtube.com/watch?v=xEeXS_kANVQ Features: • Fully Automatic And All Metal Detectors: The MD-3010II detector detects all kinds of metal objects. Unless you have set for some objects that you do not want to detect. • LCD: The LCD comes with light, it improve to identify the metal in night or caliginous outside. • Target Identity: The detected objects are shown on the LCD display. You can decide immediately if the objects worth to be recovered. • Unique Tone For Target: You do not have to keep watching the LCD display, when an object is being detected, an unique tone corresponding to a target will generate. You may even searching when there is little or no light. • No Clumsy Slack Cable: Hidden search coil cable (connecting between control unit and search coil) avoid entangling and for ease of stem length adjustment. • Headphone Jack: Provided for headphone connection. Both stereo or mono headphone can be used. • Volume Control: For adjusting the output volume to the loud speaker or headphone. • Batteries Condition Indicator: Shows the conditions of the batteries in the battery compartment. •Power: Use six 1.5 volt AA alkaline batteries. Specification: Battery: 6 x 1.5V AA alkaline batteries (Note: the battery is not allowed to ship by air mail, so the batteries is not included in the box sent to you) Operating current: Standby - 65mA, Max - 150mA Operating voltage range: 72 - 9.6V Operating frequency: 7.5KHZ +/- 1KHZ Sensitivety: Min. 8 inch (Test Coin: US 50 cent) Audio frequency: 294HZ (re) 330HZ (me) 349HZ (fa) 392HZ