This professional metal underground detector is a useful tool to seek treasures, find gold andamp silver jewelry, coinsand other metal in the ground. It is widely used in detecting gold, silver, aluminum, copper, iron, and raremetals, finding lost precious metal items. Features: Perfect for finding metal objects and anywhere that hidden metal needs to be detected. Designed to find gold andamp silver jewelry, coins and other metal in the ground, and can also find land mines. Adjustable height of metal detector, to adjust the detectorandrsquo s length for comfortable use. LCD analogue display and audio indicate the detection of metal. Fully Automatic and All Metal Detectors - Your detector detects all kinds of metal objects. Unless you have set forsome objects that you donandrsquo t want to detect. Low battery indication and large LCD display with backlight -identify the metal in night or caliginous outside. Unwanted Target Elimination - You can set the detector not to respond to some objects. Unique Tone for Target - You donandrsquo t have to keep watching the LCD display, when an object is being detected, anunique tone corresponding to a target will generate. You may even search when there is little or no light. No Clumsy Slack Cable - hidden search coil cable (connecting between control unit and search coil) avoidsentangling and for easy adjustment of stem length. Headphone Jack - provided for headphone connection. Both stereo or mono headphone can be used. Volume Control - adjust the output volume of the loud speaker or headphone. Batteries Condition Indicator - shows the conditions of the batteries in the battery compartment. Waterproof Search Coil - you can use the metal detector in the shallow water. Armrest andamp Stem - designed to eliminate strain on forearm. The nylon bracket to further secure the slip of the handcompartment after long time holding the detector by arm. Specifications: Color: Yellow or Gold (Optional) Material: ABS Plastic and Aluminum and Copper Min Detection Diameter: 8andquot (Test Coin: US 50) Detect Objects: Metal Operate Current: STANDBY 65mA, MAX 150mA Operating Voltage Range: 7.2-9.6v Operating Frequency: 7.5KHZ1KHZ Power Supply: 6 x 1.5V AA Alkaline Batteries (Not Included) Audio Frequency: 294Hz(re) 330Hz(me) 349HZ(fa) 392Hz(so) 440Hz(la) 494Hz(ti) 523Hz(do) Detection Indication: LCD Analogue Display Mode, Audio Mode Sensitivity: Applicable for detecting gold, silver, aluminum, copper, iron, and rare metals. Application: Testing metal foreign body of raw materials, fuel and food, Detection of underground pipeline andamp line,Archaeology, Exploration, Found buried treasures of gold, silver and metal artifacts. Operating Temperature: -2060 or -4140 Storage Temperature: -3060 or -22140 Item Size: 120 x 34.5 x 15cm or 47.24 x 13.58 x 5.91in Item Weight: 1.04kg or 2.29 lb Package Size: 56 x 19 x 16cm or 22.05 x 7.48 x 6.30in Package Weight: 1.59kg or 3.51 lb Package List: 1 x Metal Detector Main Unit 1 x Extension Aluminum Tube 1 x Armrest 1 x Connecting Rod 1 x User Manual