Features:  Perfect for finding metal objects and anywhere that hidden metal needs to be detected.  Designed to find gold & silver jewelry, coins and other metal in the ground, and can also find land mines.  Adjustable height of metal tester, to adjust the tester’s length for comfortable use.  LCD analogue display and audio indicate the detection of metal.  Fully Automatic and All Metal testers - Your tester detect all kinds of metal objects. unless you have set for some objects that you don’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 tester not to respond to some objects.  Unique Tone for Target - You don’t have to keep watching the LCD display, when an object is being detected, an unique tone corresponds 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) avoids entangling 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 tester in the shallow water.  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 tester by arm.     Specifications:  Color: Yellow.  Material: ABS Plastic + Aluminum + Copper.  Min Detection Diameter: 8' (Test Coin: US ¢ 50).  Detect Objects: Metal.  Operate Current: STANDBY 65mA, MAX 150mA.  Operating Voltage Range: 7.2-9.6v.  Operating Frequency: 7.5KHZ+/-1KHZ.  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 & line, Archaeology, Exploration, Found buried treasures of gold, silver and metal artifacts.  Operating Temperature: -20~60°C / -4~140°F.  Storage Temperature: -30~60°C / -22~140°F. Item Size: 120 * 34.5 * 15cm / 11.81 * 11.81 * 44.68in.  Item Weight: 1.04kg / 2.29 lb.  Package Size: 56 * 19 * 16cm / 22.05 * 7.48 * 6.30in.  Package Weight: 1.59kg / 3.51 lb.     Package List:  1 * Metal Tester Main Unit.  1 * Extension Aluminum Tube.  1 * Armrest.  1 * Connecting Rod.  1 * English User Manual