Xcellent Global Metal Detector Gold Digger Treasure Hunter MD-3010II With this powerful and versatile device you can hunt for coins, relics, jewelry, gold and silver just about anywhere. 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 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. Target Identity: The detected objects are shown on the LCD display, you can decide if the objects worth to be recovered Batteries Condition Indicator: Shows the conditions of the batteries in the battery compartment. Waterproof Search Coil: Lets you use the detector in the shallow water. Adjustable Stem: Lets you adjust the detector's length for comfortable use. The micro-plug that connects the search coil and the controller unit is made of metal which makes the plug more reliable. Armrest & Stem: Designed to eliminate strain on forearm 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) .The nylon bracket to further secure the slip of the hand compartment after long time holding the detector by arm 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. Power: Use six 1.5 volt AA alkaline batteries.Audio frequency: 294HZ (re) 330HZ (me) 349HZ (fa) 392HZ (so) 440HZ (la) 494HZ (ti) 523HZ (do) Tempreture range: -20 - 60 Celsius degree Size: 540mm(L) x 345mm(W) x 150mm(H) Weight: 1.54kg.